PrincessPiTracker/NOTES-SCRATCH.md

Notes

• using esp-idf v5.5.1 for testin

Wireshark

• filter for finding these adverts by mac is btle.advertising_address == xx:xx:xx:xx:xx || btle.scanning_address == xx:xx:xx:xx:xx
• filter for narrowing to without mac is (btcommon.eir_ad.entry.type == 0x01) && (btle.advertising_header == 0x2506)

Voltage reading

1. 2x 200k resistor
   1. bat+ -> adc0
   2. bat- -> adc0
2. adc oneshot read esp-idf
3. battery usage Xiao C6
4. battery usage Xiao C3

• max usable interval 4000ms seems like
  • 2000ms seems moar stable? idk

Scratch

normal-10.230-10ms-nousb-ant-