Comments on: ESP32 with LoRa using Arduino IDE – Getting Started

By: Sara Santos

Sara Santos — Thu, 30 Oct 2025 11:11:29 +0000

In reply to hbannw.

Hi.

In the section that receives and prints the messages, try printing one byte at a time instead

for (int i = 0; i < packetSize; i++) {
Serial.print((char)LoRa.read());
}

Let me know if this fixes the issue.

Regards,
Sara

By: hbannw

hbannw — Wed, 29 Oct 2025 17:08:24 +0000

Hi Sara, thanks for your work.

I made a test build with 2 ESP32 and 2 SX1276 boards, 86.3 mm antenna soldered.
I used the sender and receiver code without modification and the reiver shows messages like :
Received packet ‘m�dll�0’ with RSSI -64
Received packet ‘h�dl<,51’ with RSSI -65
Received packet ‘Z3ld_�=’ with RSSI -64

Is there a way to correct this ?
Regards,
Hubert

By: Bernard Lheureux

Bernard Lheureux — Mon, 27 Oct 2025 18:02:43 +0000

Hello Mishab,
if you want someone to help you, please give more informations. Wiring of the pi and esp32 together and the wiring with sx1278, please join code in both of them.

By: Mishab

Mishab — Mon, 27 Oct 2025 16:54:37 +0000

In reply to Sara Santos. Sx1278

By: Sara Santos

Sara Santos — Mon, 27 Oct 2025 16:50:28 +0000

In reply to Mishab. Which LoRa module are you using?

By: Mishab

Mishab — Mon, 27 Oct 2025 15:18:33 +0000

Thanks for replying,
Iam dealing with this issue that both boards are initialising lora and tx side is sending packets but the rx side is kept showing waiting for packets nothing other than that,can you help me over come this issue

By: Sara Santos

Sara Santos — Mon, 27 Oct 2025 14:58:27 +0000

In reply to Mishab.

Hi.
Yes. You can use those boards without any problems.
Regards,
Sara

By: Mishab

Mishab — Sun, 26 Oct 2025 03:11:04 +0000

Hi,
Can I use raspberry pi pico as the tx side microcontroller and esp32 as rx side microcontroller does that cause any problems on sending and receiving data packets. Please provide your suggestions.

By: Sara Santos

Sara Santos — Wed, 01 Oct 2025 13:55:21 +0000

In reply to V.

Hi.
Can you tell me which ones?
Thank you.
Regards,
Sara

By: V

Wed, 01 Oct 2025 06:23:51 +0000

The ism band ranges are incorrect