Thanks @beegee. Yes, for US915 the chart is
The chart is 11 bytes at the default Datarate. I could do some testing with changing the datarate but my bigger problem is that my machine leaning library here and EdgeImpulse’s ML libraries do not run on the device. For both I am getting an error about the size of the ROM.
Possibly the standard ML program is trying to save data into the wrong location. Anyone know the amount of ROM and flash in the RAK2270 Sticker Tracker, compared to say a XIAO SAMD (32KB SRAM, 256KB Flash ) or Arduino Nano33BleSense (256 KB SRAM, 1MB flash)?
From RAK3172 ROM overflowed - #2 by beegee
looks like it is 250kb flash
RAK3172 evaluation board which is similar
ARM Cortex-M4 32-bit
64 kbytes RAM
256 kbytes flash memory with ECC
Looks like anything that runs on the XIAO SAMD board should run on the RAK2270. I will do a bit more testing.
Side note: Is the battery on the sticker tracker’s rechargeable? If so, does anyone know the typical charge rate, current and voltage for them?