TUTORIALS & PROJECTS A Bench Power Supply is an essential component for any serious electronics experimenter. But a good supply with multiple output voltages and a high current capability can set you back some serious cashIn this article we'll look at an alternative - using an old computer ATX power supply as a high-performance workbench power supply.It's a simple project that can give you a highly capable piece WORKSHOP | DRONEBOT WORKSHOP Workshop. Welcome to the workshop! The DroneBot Workshop is not just a website, it’s actually a real workshop where I do real work with real tools and real parts. The workshop idea started in late August 2015 when I decided to clear off my old work bench so that I PROJECTS | DRONEBOT WORKSHOP Projects | DroneBot Workshop. Building electronic projects is a rewarding experience. Not only do you end up with a unique and useful device, but you also get the satisfaction of creating something with your own hands. Check out some of the great projects that I’ve built in the workshop. You’re sure to find something that interests you. TUTORIALS | DRONEBOT WORKSHOP Here at the DroneBot Workshop, there are lots of tutorials to quickly make you an expert on all sorts of exciting subjects. I cover everything from basic electronic theory to working with microcontrollers and using sensors. No matter what level you’re at, you’re sure to find a tutorial that is just your speed. USING SERVO MOTORS WITH THE ESP32 The code makes use of an Adafruit library for the PCA9685, the Adafruit PWM Servo Drive r library.You can obtain this directly within your Library Manager, just as you did with the ESP32Servo library.. We also use the Wire library, which is the built-in library for working with I2C.. As with our previous sketches we need to calculate some values to represent the minimum and maximum pulse width ESP32 | DRONEBOT WORKSHOP ESP32 | DroneBot Workshop. The ESP32 is a 32-bit microcontroller manufactured by Espressif Syetems. It is an upgrade to the popular ESP8266 and features integrated WiFi, Bluetooth and BLE. It is available in a number of popular modules and is the perfect microcontroler for IoT debvices and designs that require IoT and

Internet access.

ESP32-CAM - GETTING STARTED & SOLVING COMMON PROBLEMSSEE MORE ON DRONEBOTWORKSHOP.COM I2C PART 2 - BUILD AN I2C SENSOR As you’ll recall from the last article and video, I2C is a method of exchanging data between integrated circuits, sensors, microcomputers and microcontrollers. It uses two wires for communications and another two for power and ground. The two communications connections are as follows: SDA – This is the serial data line. MULTIPLE I2C BUSES WITH AN ARDUINO AND TCA9548A MODULESEE MORE ON DRONEBOTWORKSHOP.COM HELP NEEDED FOR “USING IR REMOTE CONTROLS WITH ARDUINO Greetings WolfgangW, I hope this might assist you. I once had a voluntary job as a stage hand at a local pantomime. They wanted UV lighting across the stage front and in specific areas but only at set times. My solution was using IR remote control, the Maker version, to control Arduino nanos to switch on/off, but they are all very similar. TUTORIALS & PROJECTS A Bench Power Supply is an essential component for any serious electronics experimenter. But a good supply with multiple output voltages and a high current capability can set you back some serious cashIn this article we'll look at an alternative - using an old computer ATX power supply as a high-performance workbench power supply.It's a simple project that can give you a highly capable piece WORKSHOP | DRONEBOT WORKSHOP Workshop. Welcome to the workshop! The DroneBot Workshop is not just a website, it’s actually a real workshop where I do real work with real tools and real parts. The workshop idea started in late August 2015 when I decided to clear off my old work bench so that I PROJECTS | DRONEBOT WORKSHOP Projects | DroneBot Workshop. Building electronic projects is a rewarding experience. Not only do you end up with a unique and useful device, but you also get the satisfaction of creating something with your own hands. Check out some of the great projects that I’ve built in the workshop. You’re sure to find something that interests you. TUTORIALS | DRONEBOT WORKSHOP Here at the DroneBot Workshop, there are lots of tutorials to quickly make you an expert on all sorts of exciting subjects. I cover everything from basic electronic theory to working with microcontrollers and using sensors. No matter what level you’re at, you’re sure to find a tutorial that is just your speed. USING SERVO MOTORS WITH THE ESP32 The code makes use of an Adafruit library for the PCA9685, the Adafruit PWM Servo Drive r library.You can obtain this directly within your Library Manager, just as you did with the ESP32Servo library.. We also use the Wire library, which is the built-in library for working with I2C.. As with our previous sketches we need to calculate some values to represent the minimum and maximum pulse width ESP32 | DRONEBOT WORKSHOP ESP32 | DroneBot Workshop. The ESP32 is a 32-bit microcontroller manufactured by Espressif Syetems. It is an upgrade to the popular ESP8266 and features integrated WiFi, Bluetooth and BLE. It is available in a number of popular modules and is the perfect microcontroler for IoT debvices and designs that require IoT and

Internet access.

ESP32-CAM - GETTING STARTED & SOLVING COMMON PROBLEMSSEE MORE ON DRONEBOTWORKSHOP.COM I2C PART 2 - BUILD AN I2C SENSOR As you’ll recall from the last article and video, I2C is a method of exchanging data between integrated circuits, sensors, microcomputers and microcontrollers. It uses two wires for communications and another two for power and ground. The two communications connections are as follows: SDA – This is the serial data line. MULTIPLE I2C BUSES WITH AN ARDUINO AND TCA9548A MODULESEE MORE ON DRONEBOTWORKSHOP.COM HELP NEEDED FOR “USING IR REMOTE CONTROLS WITH ARDUINO Greetings WolfgangW, I hope this might assist you. I once had a voluntary job as a stage hand at a local pantomime. They wanted UV lighting across the stage front and in specific areas but only at set times. My solution was using IR remote control, the Maker version, to control Arduino nanos to switch on/off, but they are all very similar. WORKSHOP | DRONEBOT WORKSHOP Workshop. Welcome to the workshop! The DroneBot Workshop is not just a website, it’s actually a real workshop where I do real work with real tools and real parts. The workshop idea started in late August 2015 when I decided to clear off my old work bench so that I CONTROLLING AC DEVICES WITH ARDUINO The control input on the IoT Relay can be activated with a range of voltages, both DC and AC. On the DC side, it can activate with voltages as low as 3.3-volts, making it suitable for control by both 3.3-volt and 5-volt logic devices. Operation is simple – apply the control voltage and the relay is activated. ARDUINO | DRONEBOT WORKSHOP Arduino is an open-source microcontroller project that is literally changing the world. Originally developed in Italy and named after the bar that was frequented by its developers, the Arduino and Arduino clones are now manufactured by companies around the world

RASPBERRY PI PICO

Power Pins. The Pico is a 3.3-volt logic device, however, it can be powered with a range of power supplies thanks to a built-in voltage converter and regulator. All of the power-related pins are groped in one section on the board, close to the microUSB connector. VBUS – This is the power from the microUSB bus, 5-volts. USING BIG STEPPER MOTORS WITH ARDUINO Most large stepper motors are bipolar, meaning that they have 4-wires, two per coil assembly. Bipolar stepper motors can be driven using dedicated modules or with H-Bridges. In the previous article, we used both an A4988 stepper module and an L298N H-Bridge to drive bipolar stepper motors with an Arduino to drive a common NEMA 17 size motor. I2C COMMUNICATIONS PART 1 In this first of several articles about I2C, I will explain what I2C is. I’ll also show you how to use the Arduino Wire library to exchange data between two Arduinos.

EEPROM WITH ARDUINO

Running the External EEPROM Sketch. Load the sketch to your Arduino and start turning the potentiometer. You should observe the servo turning accordingly, as well as the data being displayed on the serial monitor. After about a minute the recording will end. EXPERIMENTS WITH THE RCWL-0516 The RCWL-0156 is an inexpensive microwave proximity sensor that uses Doppler Radar to detect moving objects. It can be used on its own or with an Arduino. In this article, I will show you how to use this device both ways. Includes Arduino sketches for remote sensor and

latching sensors.

CONVERT ATX POWER SUPPLY TO BENCH SUPPLY You’ll notice that many connections (i.e. ground) have been repeated, this is done to increase the current carrying capability. The actual connections from the power supply are as follows: Ground – (BLACK) – The Ground or reference. +5 V – (RED) – Positive 5 volts. +12 V – (YELLOW) – Positive 12 volts. +3.3 V – (ORANGE

LASER VS ULTRASONIC

The sketch doesn’t require any additional libraries, the only library it uses is the Arduino Wire Library which simplifies using I2C. The real action in this sketch occurs in the SensorRead function. If you step through this function you’ll see how the I2C bus is used to contact the sensor, request a reading and add the result to a data

buffer.

TUTORIALS & PROJECTS A Bench Power Supply is an essential component for any serious electronics experimenter. But a good supply with multiple output voltages and a high current capability can set you back some serious cashIn this article we'll look at an alternative - using an old computer ATX power supply as a high-performance workbench power supply.It's a simple project that can give you a highly capable piece PROJECTS | DRONEBOT WORKSHOP Projects | DroneBot Workshop. Building electronic projects is a rewarding experience. Not only do you end up with a unique and useful device, but you also get the satisfaction of creating something with your own hands. Check out some of the great projects that I’ve built in the workshop. You’re sure to find something that interests you. WORKSHOP | DRONEBOT WORKSHOP Workshop. Welcome to the workshop! The DroneBot Workshop is not just a website, it’s actually a real workshop where I do real work with real tools and real parts. The workshop idea started in late August 2015 when I decided to clear off my old work bench so that I TUTORIALS | DRONEBOT WORKSHOP Here at the DroneBot Workshop, there are lots of tutorials to quickly make you an expert on all sorts of exciting subjects. I cover everything from basic electronic theory to working with microcontrollers and using sensors. No matter what level you’re at, you’re sure to find a tutorial that is just your speed. ESP32 | DRONEBOT WORKSHOP ESP32 | DroneBot Workshop. The ESP32 is a 32-bit microcontroller manufactured by Espressif Syetems. It is an upgrade to the popular ESP8266 and features integrated WiFi, Bluetooth and BLE. It is available in a number of popular modules and is the perfect microcontroler for IoT debvices and designs that require IoT and

Internet access.

USING SERVO MOTORS WITH THE ESP32 The code makes use of an Adafruit library for the PCA9685, the Adafruit PWM Servo Drive r library.You can obtain this directly within your Library Manager, just as you did with the ESP32Servo library.. We also use the Wire library, which is the built-in library for working with I2C.. As with our previous sketches we need to calculate some values to represent the minimum and maximum pulse width CONTROLLING AC DEVICES WITH ARDUINO The control input on the IoT Relay can be activated with a range of voltages, both DC and AC. On the DC side, it can activate with voltages as low as 3.3-volts, making it suitable for control by both 3.3-volt and 5-volt logic devices. Operation is simple – apply the control voltage and the relay is activated. ARDUINO | DRONEBOT WORKSHOP Arduino is an open-source microcontroller project that is literally changing the world. Originally developed in Italy and named after the bar that was frequented by its developers, the Arduino and Arduino clones are now manufactured by companies around the world and are available in several different configurations. ESP32-CAM - GETTING STARTED & SOLVING COMMON PROBLEMSSEE MORE ON DRONEBOTWORKSHOP.COM I2C PART 2 - BUILD AN I2C SENSOR As you’ll recall from the last article and video, I2C is a method of exchanging data between integrated circuits, sensors, microcomputers and microcontrollers. It uses two wires for communications and another two for power and ground. The two communications connections are as follows: SDA – This is the serial data line. TUTORIALS & PROJECTS A Bench Power Supply is an essential component for any serious electronics experimenter. But a good supply with multiple output voltages and a high current capability can set you back some serious cashIn this article we'll look at an alternative - using an old computer ATX power supply as a high-performance workbench power supply.It's a simple project that can give you a highly capable piece PROJECTS | DRONEBOT WORKSHOP Projects | DroneBot Workshop. Building electronic projects is a rewarding experience. Not only do you end up with a unique and useful device, but you also get the satisfaction of creating something with your own hands. Check out some of the great projects that I’ve built in the workshop. You’re sure to find something that interests you. WORKSHOP | DRONEBOT WORKSHOP Workshop. Welcome to the workshop! The DroneBot Workshop is not just a website, it’s actually a real workshop where I do real work with real tools and real parts. The workshop idea started in late August 2015 when I decided to clear off my old work bench so that I TUTORIALS | DRONEBOT WORKSHOP Here at the DroneBot Workshop, there are lots of tutorials to quickly make you an expert on all sorts of exciting subjects. I cover everything from basic electronic theory to working with microcontrollers and using sensors. No matter what level you’re at, you’re sure to find a tutorial that is just your speed. ESP32 | DRONEBOT WORKSHOP ESP32 | DroneBot Workshop. The ESP32 is a 32-bit microcontroller manufactured by Espressif Syetems. It is an upgrade to the popular ESP8266 and features integrated WiFi, Bluetooth and BLE. It is available in a number of popular modules and is the perfect microcontroler for IoT debvices and designs that require IoT and

Internet access.

USING SERVO MOTORS WITH THE ESP32 The code makes use of an Adafruit library for the PCA9685, the Adafruit PWM Servo Drive r library.You can obtain this directly within your Library Manager, just as you did with the ESP32Servo library.. We also use the Wire library, which is the built-in library for working with I2C.. As with our previous sketches we need to calculate some values to represent the minimum and maximum pulse width CONTROLLING AC DEVICES WITH ARDUINO The control input on the IoT Relay can be activated with a range of voltages, both DC and AC. On the DC side, it can activate with voltages as low as 3.3-volts, making it suitable for control by both 3.3-volt and 5-volt logic devices. Operation is simple – apply the control voltage and the relay is activated. ARDUINO | DRONEBOT WORKSHOP Arduino is an open-source microcontroller project that is literally changing the world. Originally developed in Italy and named after the bar that was frequented by its developers, the Arduino and Arduino clones are now manufactured by companies around the world and are available in several different configurations. ESP32-CAM - GETTING STARTED & SOLVING COMMON PROBLEMSSEE MORE ON DRONEBOTWORKSHOP.COM I2C PART 2 - BUILD AN I2C SENSOR As you’ll recall from the last article and video, I2C is a method of exchanging data between integrated circuits, sensors, microcomputers and microcontrollers. It uses two wires for communications and another two for power and ground. The two communications connections are as follows: SDA – This is the serial data line. WORKSHOP | DRONEBOT WORKSHOP Workshop. Welcome to the workshop! The DroneBot Workshop is not just a website, it’s actually a real workshop where I do real work with real tools and real parts. The workshop idea started in late August 2015 when I decided to clear off my old work bench so that I ARDUINO | DRONEBOT WORKSHOP Arduino is an open-source microcontroller project that is literally changing the world. Originally developed in Italy and named after the bar that was frequented by its developers, the Arduino and Arduino clones are now manufactured by companies around the world

RASPBERRY PI PICO

Power Pins. The Pico is a 3.3-volt logic device, however, it can be powered with a range of power supplies thanks to a built-in voltage converter and regulator. All of the power-related pins are groped in one section on the board, close to the microUSB connector. VBUS – This is the power from the microUSB bus, 5-volts. USING BIG STEPPER MOTORS WITH ARDUINO Most large stepper motors are bipolar, meaning that they have 4-wires, two per coil assembly. Bipolar stepper motors can be driven using dedicated modules or with H-Bridges. In the previous article, we used both an A4988 stepper module and an L298N H-Bridge to drive bipolar stepper motors with an Arduino to drive a common NEMA 17 size motor. I2C COMMUNICATIONS PART 1 In this first of several articles about I2C, I will explain what I2C is. I’ll also show you how to use the Arduino Wire library to exchange data between two Arduinos. EXPERIMENTS WITH THE RCWL-0516 The RCWL-0156 is an inexpensive microwave proximity sensor that uses Doppler Radar to detect moving objects. It can be used on its own or with an Arduino. In this article, I will show you how to use this device both ways. Includes Arduino sketches for remote sensor and

latching sensors.

MULTIPLE I2C BUSES WITH AN ARDUINO AND TCA9548A MODULE The I2C bus from the Arduino is connected to both the multiplexer and the temperature and humidity sensor. The displays are each connected to independent I2C busses, bus 1 for display 1 and bus 2 for display 2. You could use any two output channels, they are all the same. Note the use of pullup resistors on the display side. SD CARD EXPERIMENTS WITH ARDUINO SD Card Experiments with Arduino. Description. SD and microSD cards are a simple way to add huge amounts of non-volatile storage to your Arduino designs. In this article, I will show you how to use SD card modules with the Arduino. I will also show you how to

EEPROM WITH ARDUINO

Running the External EEPROM Sketch. Load the sketch to your Arduino and start turning the potentiometer. You should observe the servo turning accordingly, as well as the data being displayed on the serial monitor. After about a minute the recording will end. CONVERT ATX POWER SUPPLY TO BENCH SUPPLY You’ll notice that many connections (i.e. ground) have been repeated, this is done to increase the current carrying capability. The actual connections from the power supply are as follows: Ground – (BLACK) – The Ground or reference. +5 V – (RED) – Positive 5 volts. +12 V – (YELLOW) – Positive 12 volts. +3.3 V – (ORANGE TUTORIALS & PROJECTS A Bench Power Supply is an essential component for any serious electronics experimenter. But a good supply with multiple output voltages and a high current capability can set you back some serious cashIn this article we'll look at an alternative - using an old computer ATX power supply as a high-performance workbench power supply.It's a simple project that can give you a highly capable piece WORKSHOP | DRONEBOT WORKSHOP Welcome to the Workshop! The DroneBot Workshop is a real workshop, with all the tools needed to design and build any electromechanical device you can dream up. Learn to select and use tools and test PROJECTS | DRONEBOT WORKSHOP Here are some of the electronic projects that I have built in the DroneBot Workshop. Each one has a full article and video. TUTORIALS | DRONEBOT WORKSHOP I2C Communications Part 1 - Arduino to Arduino. This is the first of a series of articles about using I2C. Today I will explain what I2C is and show you the Arduino Wire Library CONTROLLING AC DEVICES WITH ARDUINO The first integer we define is outputPins, which defines the number of pins we are controlling.If you want to use more (or less) than four outputs you can adjust the value of this variable accordingly. The “code reducing” technique starts with the second definition. ARDUINO | DRONEBOT WORKSHOP Arduino is an open-source microcontroller project that is literally changing the world. Originally developed in Italy and named after the bar that was frequented by its developers, the Arduino and Arduino clones are now manufactured by companies around the world and are available in several different configurations. ESP32 | DRONEBOT WORKSHOP The ESP32 is an inexpensive yet super-powerful 32-bit microcontroller that is loaded with advanced features, including WiFi and Bluetooth

BLE.

USING SERVO MOTORS WITH THE ESP32 The code makes use of an Adafruit library for the PCA9685, the Adafruit PWM Servo Drive r library.You can obtain this directly within your Library Manager, just as you did with the ESP32Servo library.. We also use the Wire library, which is the built-in library for working with I2C.. As with our previous sketches we need to calculate some values to represent the minimum and maximum pulse width ESP32-CAM - GETTING STARTED & SOLVING COMMON PROBLEMSSEE MORE ON DRONEBOTWORKSHOP.COM MULTIPLE I2C BUSES WITH AN ARDUINO AND TCA9548A MODULESEE MORE ON DRONEBOTWORKSHOP.COM TUTORIALS & PROJECTS A Bench Power Supply is an essential component for any serious electronics experimenter. But a good supply with multiple output voltages and a high current capability can set you back some serious cashIn this article we'll look at an alternative - using an old computer ATX power supply as a high-performance workbench power supply.It's a simple project that can give you a highly capable piece WORKSHOP | DRONEBOT WORKSHOP Welcome to the Workshop! The DroneBot Workshop is a real workshop, with all the tools needed to design and build any electromechanical device you can dream up. Learn to select and use tools and test PROJECTS | DRONEBOT WORKSHOP Here are some of the electronic projects that I have built in the DroneBot Workshop. Each one has a full article and video. TUTORIALS | DRONEBOT WORKSHOP I2C Communications Part 1 - Arduino to Arduino. This is the first of a series of articles about using I2C. Today I will explain what I2C is and show you the Arduino Wire Library CONTROLLING AC DEVICES WITH ARDUINO The first integer we define is outputPins, which defines the number of pins we are controlling.If you want to use more (or less) than four outputs you can adjust the value of this variable accordingly. The “code reducing” technique starts with the second definition. ARDUINO | DRONEBOT WORKSHOP Arduino is an open-source microcontroller project that is literally changing the world. Originally developed in Italy and named after the bar that was frequented by its developers, the Arduino and Arduino clones are now manufactured by companies around the world and are available in several different configurations. ESP32 | DRONEBOT WORKSHOP The ESP32 is an inexpensive yet super-powerful 32-bit microcontroller that is loaded with advanced features, including WiFi and Bluetooth

BLE.

USING SERVO MOTORS WITH THE ESP32 The code makes use of an Adafruit library for the PCA9685, the Adafruit PWM Servo Drive r library.You can obtain this directly within your Library Manager, just as you did with the ESP32Servo library.. We also use the Wire library, which is the built-in library for working with I2C.. As with our previous sketches we need to calculate some values to represent the minimum and maximum pulse width ESP32-CAM - GETTING STARTED & SOLVING COMMON PROBLEMSSEE MORE ON DRONEBOTWORKSHOP.COM MULTIPLE I2C BUSES WITH AN ARDUINO AND TCA9548A MODULESEE MORE ON DRONEBOTWORKSHOP.COM WORKSHOP | DRONEBOT WORKSHOP Welcome to the Workshop! The DroneBot Workshop is a real workshop, with all the tools needed to design and build any electromechanical device you can dream up. Learn to select and use tools and test CONTROLLING AC DEVICES WITH ARDUINO The first integer we define is outputPins, which defines the number of pins we are controlling.If you want to use more (or less) than four outputs you can adjust the value of this variable accordingly. The “code reducing” technique starts with the second definition.

RASPBERRY PI PICO

Near the end of January 2021, the Raspberry Pi Foundation dropped a bombshell with the introduction of the Pico, their entry into the world of microcontrollers.. Lots of capability and a breakthrough price tag has everyone watching the Pico, and today I’m going to put this little wonder through its paces. EXPERIMENTS WITH THE RCWL-0516 The RCWL-0156 is an inexpensive microwave proximity sensor that uses Doppler Radar to detect moving objects. It can be used on its own or with an Arduino. In this article, I will show you how to use this device both ways. Includes Arduino sketches for remote sensor and

latching sensors.

SD CARD EXPERIMENTS WITH ARDUINO SD and microSD cards are a simple way to add huge amounts of non-volatile storage to your Arduino designs. In this article, I will show you how to use SD card modules with the Arduino.

EEPROM WITH ARDUINO

Introduction. Computers and microcontrollers need memory to store data, either permanently or temporarily, and while this memory can come in a variety of forms it can be divided into two basic types – volatile and nonvolatile. I2C COMMUNICATIONS PART 1 In this first of several articles about I2C, I will explain what I2C is. I’ll also show you how to use the Arduino Wire library to exchange data between two Arduinos.

LASER VS ULTRASONIC

The sketch doesn’t require any additional libraries, the only library it uses is the Arduino Wire Library which simplifies using I2C. The real action in this sketch occurs in the SensorRead function. If you step through this function you’ll see how the I2C bus is used to contact the sensor, request a reading and add the result to a data

buffer.

CONVERT ATX POWER SUPPLY TO BENCH SUPPLY An ideal workbench power supply should have both 5-volt and 12-volt outputs, with 3.3-volts being a nice option as well. It should be capable of providing several amperes of current for each voltage. HELP NEEDED FOR “USING IR REMOTE CONTROLS WITH ARDUINO codecage and WolfgangW. Was just about to state the same thing. I'm using library Remote.h version 2.1 from 1999! I was about to view in PlatformIO to see if the various versions are available, Bill's video states that old library versions are available and can be 'locked'

into sketches.

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The ESP32 is an inexpensive yet super-powerful 32-bit microcontroller that is loaded with advanced features. With built-in WiFi and Bluetooth BLE, the ESP32 can be the brains of your next Sensor, Robotics, or IoT project!

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CONTROLLING DC MOTORS WITH THE L298N DUAL H-BRIDGE AND AN ARDUINO

March 11, 2017

By DroneBot Workshop

| 143 Comments

Controlling DC Motors is an essential skill for constructing robots and other hobby projects. An easy way to control DC motors is to use an L298N H-Bridge, an inexpensive component that you can buy from several sources. Fear not if you’ve never heard of the L298N or if you don’t know what an H-Bridge is - in this article I’ll show you everything you need to know to start making things move with an Arduino. We’ll even construct a simple Robot Car that you can pilot using a Joystick.So let’s get our motors running and learn all about

the L298N H-Bridge!

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WIRELESS JOYSTICK FOR ARDUINO ROBOT CAR WITH NRF24L01+

March 10, 2018

By DroneBot Workshop

| 84 Comments

Learn to use the popular nRF24L01 radio modules with an Arduino, using the RadioHead library. In this article we will conduct several experiments sending data between two Arduinos with the nRF24L01. We will then take what we have learned and build a wireless joystick controller for our robot car!

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GETTING STARTED WITH THE ESP32-CAM

May 24, 2020

By DroneBot Workshop

| 84 Comments

Today we will look at the amazing ESP32-CAM module from A-Thinker. This 10-dollar module features a 2MP camera, microSD card socket, WiFi, and Bluetooth.Unlike other ESP32 modules this one does not have a USB port, so you'll need to use an FTDI adapter to get it working.In this article I'll show you how to work with the ESP32-CAM and how to resolve common power and antenna issues.

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STEPPER MOTORS WITH ARDUINO – GETTING STARTED WITH STEPPER MOTORS

February 10, 2018

By DroneBot Workshop

| 80 Comments

Stepper motors are used in a variety of devices ranging from 3D printers and CNC machines to Blu Ray drives, cameras and even analog clocks. In this article you’ll learn how steppers work, the difference between bipolar and unipolar stepper motors and how to control both of them with an Arduino.

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CONVERT AN ATX COMPUTER SUPPLY TO A BENCH POWER SUPPLY

February 2, 2019

By DroneBot Workshop

| 79 Comments

A Bench Power Supply is an essential component for any serious electronics experimenter. But a good supply with multiple output voltages and a high current capability can set you back some serious cashIn this article we'll look at an alternative - using an old computer ATX power supply as a high-performance workbench power supply.It's a simple project that can give you a highly capable piece of equipment for next to nothing

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