Quantity   Component name
1 × PI PICO
1 × EBYTE E22400T22D module LoRa UART at 22dBm
1 × MP2451 buck converter for the 5V bus tension
1 × MAX8212 voltage supervisor to trig the voltage in supercapacitor
1 × TPS2553 current limiter to reduce current in supercapacitor
1 × TPL5110 low-power wake-up timer to wake-up idenpendently MAX8212 and EBYTE
1 × TPL5010 hardware watchdog to check PICO states
1 × TPS27081 power switch for reset E22 in case of non response
2 × 2N7000 and B250 MOSFET transistors for totem configuration, to avoid pullup consumption
1 × PCF8523 RTC powered by a coin cell RTC with alarm and low consomption
1 × MB85RC256V FRAM memory for daily logs
1 × CDRH104 220uH big self for the buck
9 × diode BAV119 sot23 for OR WIRE logic
2 × supercapacitor 10F 5.5V low ESR