** Unfortunately there is packet loss on the NRF24L01+ with this design. Using jumper wires to increase the distance between ATmega and NRF24L01+ stops the packet loss. Another option is to put tinfoil between the NRF24L01+ and the ATmega**
ATmega328 board with NRF23L01+ and I2C for reading BME280 sensor data while running on 3 x AA battery
- ATmega328 runs without external crystal (8 MHz)
WX station using 8266 E12 with DHT22, BMP280, and ADS1115 (for wind speed, wind direction, light level sensor, and battery voltage.
Code is at:
Still working on it.. All data is raw and is interpreted in php for web.
More compact speedometer with OLED display and temperature measurement.
This is the version 2 of the ATtiny85 speedometer. It features an ATmega328p uC that has more memory, pin functionalities, higher frequency and to which you can easily find the needed libraries (the ATmega328p is used on Arduino Uno). A serial-to-USB converter is needed for programming. It has the previous version's batte...
**MPU-9250** is a multi-chip module (MCM) consisting of two dies integrated into a single QFN package. One die houses the 3-Axis gyroscope and the **3-Axis accelerometer**.
**BMP280** is an absolute **barometric pressure sensor** especially designed for mobile applications.