Uploaded June 2021 | Updated September 2026, 2 weeks ago
I've been playing around with one of these E-Paper displays. I've got the LILYGO 2.7" ePaper Plus Module. Thanks to pcbway.com for sponsoring this video, PCBWay offer PCB Production, CNC and 3D Printing, PCB Assembly and much much more. You can find their details here: PCBWay.com/?from=atomic
The classic thing that people seem to do is get a weather display up and running - so I thought I would do the same.
There's a really nice library on GitHub by G6EJD that everyone seems is using. This already has support for a whole bunch of ePaper displays including the Waveshare 2.7 inch display which is the one that is used on the LILYGO board I have.
github.com/G6EJD/ESP32-e-Paper-Weather-Display
Most of the instructions are around using the Arduino IDE but as regular viewers will know I'm much happier using PlatformIO, so we'll get it up and running there.
You can find my repo here: github.com/atomic14/ESP32-E-Paper-Weather
And the demo code from LILYGO here: github.com/LilyGO/TTGO-T5S-Epaper
You can order the module I'm using here: https://s.click.aliexpress.com/e/_AZRYxj
And one of the viewers has pointed out you can get the Ruthex brass inserts here: amzn.to/35LCPSq
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Want to help support the channel? I'm accepting coffee on ko-fi.com/atomic14
I've been playing around with one of these E-Paper displays. I've got the LILYGO 2.7" ePaper Plus Module. Thanks to pcbway.com for sponsoring this video, PCBWay offer PCB Production, CNC and 3D Printing, PCB Assembly and much much more. You can find their details here: PCBWay.com/?from=atomic
The classic thing that people seem to do is get a weather display up and running - so I thought I would do the same.
There's a really nice library on GitHub by G6EJD that everyone seems is using. This already has support for a whole bunch of ePaper displays including the Waveshare 2.7 inch display which is the one that is used on the LILYGO board I have.
github.com/G6EJD/ESP32-e-Paper-Weather-Display
Most of the instructions are around using the Arduino IDE but as regular viewers will know I'm much happier using PlatformIO, so we'll get it up and running there.
You can find my repo here: github.com/atomic14/ESP32-E-Paper-Weather
And the demo code from LILYGO here: github.com/LilyGO/TTGO-T5S-Epaper
You can order the module I'm using here: https://s.click.aliexpress.com/e/_AZRYxj
And one of the viewers has pointed out you can get the Ruthex brass inserts here: amzn.to/35LCPSq
---
Want to help support the channel? I'm accepting coffee on ko-fi.com/atomic14








![Record & Playback Audio on ESP32 SD Card: Step-by-Step Guide & Demo
In this video, we record audio to an SD Card as a WAV file and then play it back.
If you like ESP32 audio videos - Ive got a complete set on this playlist: https://www.youtube.com/playlist?list=PL5vDt5AALlRfGVUv2x7riDMIOX34udtKD
Im using an I2S microphone in the video which Ive set up to use DMA to collect the samples. These are streamed straight to the SD Card and we create the WAV file header so that its a valid file.
For playback, Im using an I2S 3W amplifier board from Adafruit. This is connected to a 4ohm speaker. Once again we use DMA to transfer the samples which are streamed from the SD Card.
You should be able to modify the code to use the built-in ADC and an analogue microphone board, and you can modify the code to output using the DAC which would let you wire this up to headphones or an analogue amplifier.
[0:55] SD Card to SPI Wiring Diagram
[1:11] Soldering up an SD Card adaptor
[1:30] Getting it working
[2:27] Demo
[2:50] Looking at the WAV file on our PC
[3:22] Conclusions and wrap up
As always the code is on GitHub: https://github.com/atomic14/esp32_sdcard_audio
I2S Amplifier MAX98357 - https://amzn.to/3cg88Z5
TinyPico - https://amzn.to/3vVoONp
or ESP32 Dev board: https://amzn.to/3gb6fyc
INMP441 I2S Microphone: https://amzn.to/3cicuiv
or ICS-43434 I2S Microphone: https://www.tindie.com/products/21519/
I think I might turn this into a nice little voice memo device.
Patreon: https://www.patreon.com/atomic14
ko-fi: https://ko-fi.com/atomic14 Record & Playback Audio on ESP32 SD Card: Step-by-Step Guide & Demo](https://i.ytimg.com/vi/bVru6M862HY/mqdefault.jpg)

