Tech Note 089 - ESP Programming (Break-out boards)

After development using a 'Development Board' it is useful to transfer your programme/sketch to a bare ESP32/ESP8266 so that it uses the minimum of power and gives the best possible battery life, this video explains the relatively simple process required for programming, an activity that can seem to be quite daunting.

[ZsomborZsombibi]

I thought I knew everything about these breakout boards. Proved I didn't. Thanks for this wide-scale overview.

[MaxGoddur]

Thank you for clarifying the how and why. I came into this as a hobbyist and only purchased the devices with the USB to UART connection onboard. Had seen others using the device you used and wondered what that was all about. Now with your video, I fully understand and can appreciate the saving in money when I do finish a project. Will keep using my NodeMCU but when I am ready to finish the project will use the setup you have shown here.

[englishrupe]

A really excellent tutorial on getting these boards running. Thanks so much for your help!

[Sharkiuli]

those esp32 boards are so interesting
i'm into 3d printing myself, and i saw that there is a work in progress to use esp32 with marlin on it.
nice presentation btw, keep up the good work

[deangreenhough]

Many thanks for the video. The wow for me was the large breakout boards. On order and grateful for you sharing.

Have a good Easter

[poepflater]

A small electrolytic capacitor from en to ground (negative pole to ground) solves most autoupload problems. My boards simply accept the new code... is less of a hassle than my boards with discrete buttons for this.

[wsy]

Thanks for the video. I now know what to do with my broken dev boards by recycling the esp32

[robertlongoria]

thanks my skills increase the more I look at your vids!

[jijeshkorothpoyil]

Hi

Esp breakout boards does keep out the antenna zone for proper radiation or is there any ground plane in breakout board below the antenna?

[GeekyMino]

Great video, I wonder if it is possible to program the boards directly via j-tag instead of using the serial?

[wi_zeus]

Nice video. Could you please link to the green boards with spots for the ESP32 and 8266 on the other side? Thanks

[rudolfziegaus]

I am looking for one of those break-out boards for ESP32 - I have the white one but I am unable to solder the ESP32 onto it. Can you provide a link for the breakout-board with the yellow headers? It seems like that is sold ready to use and that would be great for me.

[ezeprojects]

Loved the informative video. One question, probably I should know the answer, but when uploading, what programmer do you use? Maybe you mentioned, but I missed it.

[thundercloud-]

Hi, nice video. i got a few questions i can use any USB to UART converter as long as i got the driver for it?

[MaxGoddur]

Why is it some hardware needs the reset and flash buttons pressed and others don't? What do they do when the button press combo is carried out?

[pmw]

Excellent video. It could be due to being south of the equator. The Aliexpress link does not give me a link to the dual-sided green boards for ESP32 and ESP8266. Thanks

[gudimetlakowshik]

I have a doubt...are those ESP32 Breakout board SoC's have arduino bootloader burnt previously to them or is it first time you're programming them directly through the USB to UART dongle?

[henninb]

I am seeing brown outs with my esp32 when I power it with my ftdi. I put a 1000uF cap between the ground and vcc, but it doesn't seem to help. Do you have any advice?

[gtxk]

What is the purpose of those pull-up resistors?

[grahamwise]

A nice trick with these break-out boards is to use OTA programming, so only program this way once. Remember it must be resetted after the first OTA program install.