Transmit environmental data from the X-NUCLEO-IKS01A3 expansion shield through the Helium Network and log it in a Google Sheet.
Long-range wireless sensor based on Whisper Node capable of running for over a year on a single CR2032, transmitting data every 60 seconds.
Have you imagined your project to last on regular AA batteries for almost 5 years? This is possible with the ESP32 chip.
Things you should know using ESP8266 WiFi module for its safety and easiness as it's very delicate module to use.
Connect up to 10 buttons using a single interrupt.
An Arduino powered birthday reminder device that will wish you on your birthday for 50 years on a single CR2450 coin cell.
An nRF52832 based, low power wire / contactless badge with Bluetooth Low Energy 5.0 and NFC functionality.
How to build an ultra low power LoRaWAN / The Things Network device using a MaxBotix ultrasonic sensor.
This project merges the use of the MySensors 2.4GHz radio mesh framework with the OneM2M cloud platform implementation.
Tiny Wireless IMUz (motion sensor)
Motor driver circuit with some power saving features.
Need to debug your code? Got stuck? Stack Overflow doesn't have the answer? Then ask the Dialectic Ball!
My first PCB design project was to create a wearable, soldering practice project in the form of Digilent's loveable Turbo.
Use FreeRTOS (simple, easy, robust, & optimised for the Arduino IDE) to reduce the power required for battery or low power applications.
One the most important feature of portable electronics should be long battery life. We can reduce the current drawn by several ways.
Build a GPS logger / tracker as a hiking tool, and check GPS when a smartphone is not available.
Ever needed to give something to someone but were not able to make the rendezvous? This Sigfox lock box is the solution!
The solar powering unit presented here has a timer which turns on the Arduino in regular intervals.
Very low power sleep mode of the ATtiny helps make projects on battery last for days (and possibly months).
Fully configurable battery-operated LoRa tester with HARDWARIO Maker Kit. You can configure every LoRa parameter and use GPS with TTN Mapper
An MH-ET LIVE 1.54" ePaper - cheap E ink display for your Arduino or ESP (setup and demo).
Controlling power to the system using alarms based on voltages!
I work a lot in my garage or in the garden, so it happens pretty often that I just don't hear my doorbell. So I made a smart one.
Two analog voltage meters, ATtiny85s and some parts from a modern bike computer turned into speed and cadence gauges for a hipster's bicycle