{ht_translation}[简体中文]:[English]
This page contains the most frequently questions from user. If this page's detail can't solve your problem, you can also talk in our forum: community.heltec.cn
- Use a better USB cable, or change a USB socket;
- Check and make sure the CP210x drive had been correctly installed, users can refer to this document: Establish Serial Connection;
- Press "PRG" button before upload.
On the premise of no hardware problem, LoRa nodes can communicate with each other node-to-node. The key to success node-to-node communication need make sure the following 7 points the same:
- The same sending and listening frequency:
LoRa.setFrequency(frequency);
- The same bandwidth:
LoRa.setSignalBandwidth(signalBandwidth);
- The same coding rate:
LoRa.setCodingRate4(codingRateDenominator);
- The same preamble length:
LoRa.setPreambleLength(preambleLength);
- The same sync word:
LoRa.setSyncWord(syncWord);
- The status of
LORA_IQ_INVERSION
is the same; - the same
SPREADING FACTOR
;
Know more information about LoRa node-to-node communication, please refer to LoRa basic library APIs: https://github.com/HelTecAutomation/Heltec_ESP32/blob/master/src/lora/API.md
The device uses the firmware of Wireless Stick Lite, it does not have a display function.