Trying to get my LoRa/WiFi Heltec board running but I'm facing problems uploading code to it. When trying something simple like "Example -> ESP8266 -> WiFiScan" or "Example -> WiFi -> ScanNetworks" I get this back:
Archiving built core (caching) in: C:\Users\osbe\AppData\Local\Temp\arduino_cache_931122\core\core_esp8266_esp8266_nodemcu_CpuFrequency_80,UploadSpeed_115200,FlashSize_4M3M_01696216298cb0bf10a7299dfddad9bf.a
Sketch uses 228797 bytes (21%) of program storage space. Maximum is 1044464 bytes.
Global variables use 32372 bytes (39%) of dynamic memory, leaving 49548 bytes for local variables. Maximum is 81920 bytes.
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed
Have tried to push the PRG button in all kinds of ways, played around with the baud rate and tried other examples as well, but the communication seems to be broken. The board is responding to uploads (it's rebooting), so there is some level of communication there.
Trying to get my LoRa/WiFi Heltec board running but I'm facing problems uploading code to it. When trying something simple like "Example -> ESP8266 -> WiFiScan" or "Example -> WiFi -> ScanNetworks" I get this back:
Have tried to push the PRG button in all kinds of ways, played around with the baud rate and tried other examples as well, but the communication seems to be broken. The board is responding to uploads (it's rebooting), so there is some level of communication there.
Any suggestions?
BR Oscar