Licensed under MIT
Creating a device to display satellite names and positions by pointing at them at the sky, and for helping to point satellite dishes/antennas to the right spot using a standalone offline device, based on daily tle database data.
- Esp32 WRoom DevC
- BNO055 Sensor (LSM303D can be used instead as well, just uncomment in source and comment out the BNO055)
- Beitian BN-280 GPS
- SSD1306 OLED 128x64 Display
- BNO055 GND=>GND VCC=>3V3 SCL=>G21 SDA=>G22
- I2C GND=>GND VCC=>3V3 SCL=>G25 SDA=>G26
- BN-280 GND=>GND VCC=>3V3 TX=>G16 RX=>G17
- 5V Power via battery pack connected using ESP32 microusb or external power regulator
I recommend flashing my freshly built esp32-idf3 firmware, or use 1.12 instead
- Flash using:
bash esptool/esptool.py --chip esp32 --port /dev/ttyUSB0 --baud 460800 write_flash -z 0x1000 bin/firmware.bin
- Use thonny or any other ide to upload the files (frozen mpy for better ram usage and stability)
src/main.py bin/bno055.mpy bin/micropyGPS.mpy bin/plan13.mpy bin/ssd1306.mpy src/geo.txt
or for development :
src/main.py src/bno055.py src/micropyGPS.py src/plan13.py src/ssd1306.py src/geo.txt
You can replace the geo.txt with your own daily tle file downloaded from: https://www.celestrak.com/NORAD/elements/
Due to RAM restrictions on the ESP32, make sure not to load more than 100 satellites at a time (or restrict them by sorting out the elevation of the satellite to be higher than 30.0 as I did in main.py).
- Plan13 in Basic by G6LVB (which I ported and modified to micropython) See http://www.g6lvb.com/Articles/LVBTracker2/index.htm
- Plan13 modifications in C++ by Mark VandeWettering K6HX and dl9sec
- Adafruit for the ssd1306 and lsm303d Library which I modified
- MicropyGPS by Michael Calvin McCoy (used as is)
Enjoy and please contribute your improvements/corrections or post your own hardware mods based on it via git issues/commits !