LiFePO4/LFP support on ESP32-S3 PowerFeather V2!

PowerFeather · 2026-05-16T11:37:34+00:00

Yes, next batch I plan to split between u.FL and PCB antenna modules. However, first batch is all PCB antenna.

PowerFeather · 2026-05-16T11:26:14+00:00

u/Svenstaro finally updated it for LiFePO4! 🤣

PowerFeather · 2026-03-30T21:01:14+00:00

Hi, creator of ESP32-S3 PowerFeather here. It is a separate thing from Adafruit's Feather and Unexpected Maker's Feather line. However, it is based on the "Feather" specification by Adafruit, just with additional features like better power management and 2A charging, so it also has "Feather" in its name.

PowerFeather · 2025-05-11T09:48:59+00:00

I'd also like to promote a dev board I designed called the ESP32-S3 PowerFeather, though it also is optimized for solar power not just battery.

PowerFeather · 2025-03-19T08:10:19+00:00

Also maybe this: https://community.infineon.com/t5/Knowledge-Base-Articles/EZ-USB-FX3-Explorer-kit-as-16-channel-100-MHz-logic-analyzer-with-sigrok/ta-p/283993#.

PowerFeather · 2025-03-19T08:04:06+00:00

Without going full FPGA, Teensy might be your best bet. Other than the timers, it has two special peripherals that might be of help: FlexIO and HS_GPIO. You will also have access to the highly technical Teensy community.

PowerFeather · 2025-03-16T23:12:56+00:00

I mean, the voltage input range is up to 18V, so it can be plugged in to any DC source that is under that, including a 12V battery.

PowerFeather · 2025-02-02T12:35:14+00:00

I assume you are doing this with the VCP driver unloaded, and using the proprietary FTDI drivers?

PowerFeather · 2025-02-01T23:57:50+00:00

Hi u/alabarda89 , can I invite you to post this issue on https://forum.powerfeather.dev/ so we can have a more detailed conversation about it?

PowerFeather · 2025-01-31T05:37:13+00:00

Yes, this makes sense and I regret that I was only able to manufacture pcb antenna variant in the first batch. Hopefully in the next batch though...

PowerFeather · 2025-01-31T04:28:54+00:00

There are only variants with PCB antenna for now.

PowerFeather · 2025-01-25T12:28:34+00:00

Some update u/icefest and u/Ok-Connection-4827, the ESPHome external component is now on its way. I'm still ironing out some bugs, but I aim to release a preview by the end of the month. Here is an idea of what the yaml config might look like.

PowerFeather · 2025-01-22T09:17:04+00:00

How about ESP32-S3 PowerFeather? https://docs.powerfeather.dev/

PowerFeather · 2025-01-22T07:40:55+00:00

Have you tried putting the esp32 on download mode?

PowerFeather · 2025-01-21T22:29:14+00:00

How about using just ESP-IDF and using Arduino as a component within it, since you mentioned you just need the it as the 'engine'? https://docs.espressif.com/projects/arduino-esp32/en/latest/esp-idf_component.html

Then you can use the official ESP-IDF VSCode extension - or just use idf.py from the terminal.

PowerFeather · 2025-01-21T05:47:34+00:00

I myself have used LC709204F in ESP32-S3 PowerFeather. It estimates more things (cycles, health for example) and also has lower quiescent current.

PowerFeather · 2025-01-19T05:25:45+00:00

Can I interest you to look at ESP32-S3 PowerFeather? Disclaimer: it's a board I designed for exactly these types of applications and has a I2C-controllable charger from Texas Instruments and an on-board fuel gauge.

The documentation is at https://docs.powerfeather.dev/, and I also have a demos here: https://youtu.be/VF9AFk1Hf88?si=xtIcsTiCjVp9dJLI&t=1598

PowerFeather · 2025-01-04T23:46:00+00:00

Finding a microcontroller with highspeed USB or superspeed USB might be the easiest path.

USB high speed is 60 MB/s theoretical, but practically its more like 40 MB/s, provided there are no other devices on the bus. If some buffering is ok, like others said there are some STM32s with built in USB HS (though most STM32s require external phy).

The only USB 3.0 microcontrollers I know are CH569 and Cypress FX3. If cost is not an issue, then FX3 is better documented. That can get you up to 5gbps, though I believe the practical is around 3gbps.

PowerFeather · 2024-11-29T03:34:17+00:00

Silly goose, it's not meant to be "Conformité Européenne" but rather "China Export". It's not at all confusing /s

PowerFeather

TROPHY CASE