Comments on: MicroPython: ESP-NOW with ESP32 (Getting Started) https://randomnerdtutorials.com/micropython-esp-now-esp32/ Learn ESP8266, ESP32, Arduino, and Raspberry Pi Fri, 04 Jul 2025 09:19:51 +0000 hourly 1 https://wordpress.org/?v=6.8.2 By: Sara Santos https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1064572 Fri, 04 Jul 2025 09:19:51 +0000 https://randomnerdtutorials.com/?p=170305#comment-1064572 In reply to paul.

Hi.
You can use any ESP32 board, and then upload ESP-NOW code into it.
Regards,
Sara

]]> By: paul https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1064542 Fri, 04 Jul 2025 06:20:19 +0000 https://randomnerdtutorials.com/?p=170305#comment-1064542 hello,

Do we have a special ESP32-NOW device wich has a hard coded firmware or can we use others as ESP32 DevkitV1
with a “ESP Now” firmware to upload into the device

]]> By: Sara Santos https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1060289 Mon, 23 Jun 2025 10:23:15 +0000 https://randomnerdtutorials.com/?p=170305#comment-1060289 In reply to Stephen Brocket.

Hi.
Yes, using uJSON can be a benefit to send structured data.
This tutorial is a simple getting started guide.
We intend to create slightly more complex projects and then we can use uJSON with those.

Thanks for your suggestion.

Regards,
Sara

]]> By: Stephen Brocket https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1060098 Sun, 22 Jun 2025 21:32:20 +0000 https://randomnerdtutorials.com/?p=170305#comment-1060098 hi Rui and Sara – thanks again for such high-quality, clear and inspirational tutorials. Would esp-now benefit from using ujson in its communication method? Maybe you could show how best to construct data packets and methods associated with this ?

]]> By: José Serena https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1059305 Fri, 20 Jun 2025 10:56:55 +0000 https://randomnerdtutorials.com/?p=170305#comment-1059305 A very easy way to know the MAC address of an ESP32 is using esptool.exe with the read_mac option. No need to install nor run anything in the ESP32.
If you don’t specify a serial port, the software will try to find one with an ESP32 connected.

C:\Users\Jose\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\4.9.dev3>esptool read_mac

esptool.py v4.8.1
Found 1 serial ports
Serial port COM3
Connecting….
Detecting chip type… ESP32-S3
Chip is ESP32-S3 (QFN56) (revision v0.2)
Features: WiFi, BLE, Embedded PSRAM 8MB (AP_3v3)
Crystal is 40MHz
MAC: c0:4e:30:3a:11:c0
Uploading stub…
Running stub…
Stub running…
MAC: c0:4e:30:3a:11:c0
Hard resetting via RTS pin…

]]> By: Sara Santos https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1059289 Fri, 20 Jun 2025 09:06:43 +0000 https://randomnerdtutorials.com/?p=170305#comment-1059289 In reply to Neil.

Hi.
Yes.
Add each sender board as a peer to the receiver board.

We’ll cover multiple senders and multiple receiver in upcoming tutorials.

Regards,
Sara

]]> By: Sara Santos https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1059288 Fri, 20 Jun 2025 09:06:03 +0000 https://randomnerdtutorials.com/?p=170305#comment-1059288 In reply to luiz.

Obrigada pelo feedback.

Cumprimentos.
Sara

]]> By: Neil https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1059183 Fri, 20 Jun 2025 01:03:49 +0000 https://randomnerdtutorials.com/?p=170305#comment-1059183 You haven’t covered multiple senders to a single receiver. I presume that each senders mac needs to be registered as a peer?

]]> By: luiz https://randomnerdtutorials.com/micropython-esp-now-esp32/#comment-1059142 Thu, 19 Jun 2025 20:00:45 +0000 https://randomnerdtutorials.com/?p=170305#comment-1059142 muito bom, obrigado !

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