design custom pcb

[DoganM95]

prototype a fully working schematic and create a pcb for it. Should be mounted on the left inner side of the slide (where the mode selector is mounted). Goal is to have only one long pcb left, that takes care of everything, even sensing a shot.

Components to use:

• ESP32-S3 mini
• 2s charger module (from ddtcrrub, Reverse engineered)
• 2s bms (red pcb which uses 95n3l ic's, reverse engineered)
• 74ahct125d logic level shifter, to control neopixels
• neopixel leds (ws2812 led's)
• time-of-flight sensor (distance sensing, interruped on shot by hammer)
• pads for contact to p-shaped metal plates (for batt, trigger touch)
• soft sensing button (for sensing currently set mode)
• npn mosfets (check if knd3202b is sufficient)
• capacitors to keep esp32 powered while shooting
• sensing button for trigger pulls
• MIC5219-3.3YM5-TR (multiple) to power any 3.3v device with low quiescent current
• high current sockets (for pcb to batt, prg, trigger touch connections)

Dimensions

lower part

45 x 3 x 12 mm

[DoganM95]

research and test, if neopixels can be driven by esp32 natively by now without any logic shifting.