I have been playing with my self built Arduino’s the last weeks. One of my designs is a small (5x5cm) board with an ATmega328P-PU and a header for a nRF24L01 wireless module. I named it the Bajduino 328RF24 🙂 Since the nRF24L01 modules work at 3,3V I decided to let the ATmega run @ 3,3V. […]
A couple of months ago I started playing with Eagle. Something I had always wanted to try but never had the time or courage to get started. After playing with Arduino’s and a Dagu Red Back Spider I had the idea to design a board with the ATmega328P-PU and a powerful 3A 5V switchmode regulator. […]
Some time ago I bought a cheap 9DOF board on Ebay. The board has 3 sensors, an ADXL345 accelerometer, HMC5883L magnetometer and an ITG3200 gyroscope. All 3 sensors are of the digital kind and use the I2C bus to communicate. These sensors need a voltage of 3,3V to work, luckily the board has an onboard […]