Hi!
Just want to intoduce my audio-reactive mod project MYNDlights:
still work in progress, but the first design with custom PCBs works now. Open for ideas, etc.
3 Likes
Hi @maketvee,
that is an awesome idea! And the FPC is such a cool way of handling it. Cheap FlatFlex ftw 
Just in case you’re interested and don’t know already anway, the MYNDberry also has headers specificall for these kind of tiny ESP32/NRF/etc. modules:
You can easily jumper the pins to the I2S output of Raspi 
(Though not half as cool as covertly sniffing )
1 Like
Thank you! I have seen the board, but wasn’t aware of this extra header port, that’s really cool!
It was a case of, “What else could be fun to put on there…” without having any idea what actually to use it for… but you just showed the perfect usecase!
There’s also an always on ultra low current 3.3ldo that could power for example a nRF ble module which would then be able to wakeup MYND from power off without causing tons of standby current.
I have some future options on the PCB too:
- LED Power switch to cut off the LEDs when battery is low or while charging (controlled by the STM32 via I2C), addressable LEDs have a quite significant idle current. Also overcurrent protection.
- I2C interface to the ESP32 , maybe for showing the the battery state at startup on the LEDs or some welcome animation
- 3 additional ports on the I2C portexpander for whatever
1 Like
Another version, this time a foldable LED “antenna” with a high-density LED stick (500LED/m) which I made some time ago. Works well in both positions.
I’ll be at Maker Faire Hannover (15./16. August) showing MYNDlights at booth 65 (LED makers united).