; Heltec E213 — SoC/chip unknown ; FIXME: identify SoC (ESP32/nRF52?) and LoRa chip, get pin mappings [env:heltec_e213] extends = soc_esp32, env:base board = heltec_e213 build_flags = ${soc_esp32.build_flags} ${env:base.build_flags} -DBOARD_HELTEC_E213 -DLORA_CHIP_SX1262 -DLORA_PIN_NSS=0 -DLORA_PIN_DIO1=0 -DLORA_PIN_RESET=0 -DLORA_PIN_BUSY=0