Arduino

A collection of 25 posts

LCD

Flash a VS-TY2662-V1 LCD controller

How to flash a VS-TY2662-V1 controller to use a salvaged LCD screen.

esp32

ESP32 Warning light

An old school warning light connected to an MQTT server thanks to an ESP32.

BLE

BLE sensor with the nRF51822 chip

The journey of building a BLE sensor prototype, with a custom firmware based on the Nordic nRF51822 chip and the Ardunio framework.

ESP8266 Featured

WiFi Gateway

I quickly built a simple WiFi gateway around a bare-bone ESP8266 to be able to test a sensor module.

RC Featured

Airboat controlled with Bluetooth

This airboat is based on an Arduino pro mini, a JDY-08 module for the communication and controlled with an Android mobile app.

Arduino

WebUSB on the Pro Micro (ATmega32u4)

An example of data exchange between your microcontroller and you web browser with WebUSB.

Arduino Featured

Cat Water Spray

How to avoid being woken up by my cats? Spray some water on them if they insist!

ATtiny

Blinking wearable

This project was the opportunity to order some PCB and discover some new components as hall sensors.

sigfox

Sigfox sensor node

Even if Sigfox is only available in few countries, it is interesting to build a sensor node with low power requirements.

ATtiny Featured

Sleep device

This little device is a low-cost homemade option which will help you to sleep like a baby!

Arduino

Pulse LED with ATtiny

The ATtiny opens new low costs project possibilities. Pulsing a LED for few seconds is an easy example.

ATtiny

ATtiny85 development boards

There is a lot of ATtiny dev boards out there. Let's compare them quickly.

Tardis

Audio player [2]: Tardis tissue box cover

It's time to build the connected Tardis! Sound, lights, and tissue box in one beautiful (?) object!

ESP8266

Audio player [1]: Concept and first circuit

A real IoT device, WiFi enabled, connected to a MQTT server which can play sound on demand!

Arduino

Day counter on LCD display

Using an ATtiny and modifying an LCD module gave me the ability to build a low power display working more than a year with two AA batteries.

Water-Tank project

Water tank monitor [5]: Power consumption

After building the circuits and programming them, I have to check the power consumption of the sensors before installing them.

Project

Arduino Pro Mini: Power consumption

Building a low power consumption project is not easy for a hobbyist. The Arduino Pro Mini is a good option but requires some tweaking!

Arduino

Arduino pro mini @ 1MHz in Arduino IDE

After building a bootloader for Arduino Pro Mini working at 1Mhz, I found a way to easily use it in the Arduino IDE.

Arduino

Compile Optiboot for Arduino Pro Mini (1Mhz / 1.8V)

Using the Arduino pro mini at 1MHz is great, but requires an ISP programmer. I built a bootloader working at this frequency to simplify developments.

Arduino

Arduino pro mini @ 1MHz - 1.8V

I'm always trying to find the best option for low power consumption projects. Using the Arduino pro mini at 1MHz and 1.8V gives new perspectives!

Water-Tank project

Water tank monitor [4]: Source code

After building the circuits of the sensors and the base station, it's now time to program them with the Arduino core.

Water-Tank project

Water tank monitor [3]: Circuits

Time to build my first water taken sensor and the base station! I will use perfboards and plastic boxes for this first iteration.

Water-Tank project

Water tank monitor [2]: Components

After reviewing the main parts for my sensors, it's time to decide which electronic components I will use.

Water-Tank project

Water tank monitor [1]: Concept

I want to create two sensors to decide which water tank should supply the chalet. Let's discuss sensors, communication, power supply and display.

ESP8266

Boards Pinout

Board pinouts are essentials to quickly prototype an electronic design.