I recently bought 4 Nrf24L01 modules, 2 small modules with internal antenna and 2 bigger ones with a preamp, amp and external antenna. You can find the small modules for less then 5$ a piece on Ebay. It’s the cheapest way make a wireless connection between 2 Arduino’s. These modules are based one the Nordic […]
Arduino RGB led color mxing from Bajdi on Vimeo. The above video is what you get when you connect 3 RGB leds to an Arduino Mega 2560. I covered them with the diffusion cover from my Nikon flash to get a better light diffusion. RGB leds are fun things, you can make some cool visual […]
By connecting a DHT22 temperature and humidity sensor, a DS1307 RTC module and an SD card module to the Arduino Mega 2560 we can make a data logging system. The DHT22 sensor measures the temperature, the DS1307 gives us the date and time and this data is then written to the SD card over the […]