hello,
the E32-868T20D is a LoRa module without LoRaWAN.
the module is based on a STM8L uC and the SEMTECH SX1276.
the programming PINs can be accessed without opening the module.
→ is it possible to create a LoRaWAN LMIC Firmware for the STM8L ?
i found some additional info:
the ASR6505 LoRaWAN is based on a STM8L
thank you
frank.
Its also a module with a UART front end, so is not compatible with LoRaWAN LMIC libraries that use SPI devices.
A question that gets asked quite often in here.
the stm8l is connected via spi to the sx1276,
the uart is “outside” of the module,
uart <—> stm8 <—> spi <—> sx1276
Oh,IC, you want to re-program the processor on the Ebyte itself.
I guess it would be possible, assuming its an STM8L with at least 32k of flash and 2k ram.
Very limited for I\O however.
The E32 modules have been re-purposed for radio control applications, so it is possible to re-program the on board micro.
yes,
there is a manual, how to flash the 30dBm version of the module with a rc-firmware:
according to photos and drawings, the STM8L151G is used in the module,
i need to check the STM8L151G version, it is an UFQFPN28 package,
STM8L151G2 - 4K
STM8L151G3 - 8K
STM8L151G4 - 16K
STM8L151G6 - 32K
are possible, read-out the ID with the ST tools should be possible.
→ what are the uC requirements for LMIC ?
For STM8L, I dont know, most people would be using the STM32s.
For 8 bit Atmels whilst LMIC does fit in a Atmega328P (32K flash and 2K RAM), its tight and only for basic setups. A lot of people would recommend a processor with more memory. .
The 30dBm vesion of the E32 is a very poor device for TTN and illegal just about everywhere.
yes, maybe it is possible with the STM8,
but from effort point of view, better to use an larger uC + SX-Chip,
in EU868, 14dBm / 27dBm are the power limits,
thank you.