panda sirlilpanda
sirlilpanda pushed to PCB_ROUTING_ATTEMPT_1 at sirlilpanda/esp32-racer 2026-03-22 03:52:59 -07:00
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sirlilpanda created branch main in sirlilpanda/pcb-trace-current-capcity-testing 2026-03-19 19:39:12 -07:00
sirlilpanda pushed to main at sirlilpanda/pcb-trace-current-capcity-testing 2026-03-19 19:39:12 -07:00
4ac1da6380 init
sirlilpanda created repository sirlilpanda/pcb-trace-current-capcity-testing 2026-03-19 19:37:57 -07:00
sirlilpanda pushed to PCB_ROUTING_ATTEMPT_1 at sirlilpanda/esp32-racer 2026-03-11 01:29:07 -07:00
sirlilpanda pushed to PCB_ROUTING_ATTEMPT_1 at sirlilpanda/esp32-racer 2026-03-10 21:45:19 -07:00
c6b0950033 updated annotating
46951a2cf2 added design rules area around power switches to keep them consistant
ea9211fe86 added rules area for routing ic and mosfets differnetly
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sirlilpanda pushed to PCB_ROUTING_ATTEMPT_1 at sirlilpanda/esp32-racer 2026-03-10 03:50:58 -07:00
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sirlilpanda created branch PCB_ROUTING_ATTEMPT_1 in sirlilpanda/esp32-racer 2026-03-10 03:50:58 -07:00
sirlilpanda pushed to main at sirlilpanda/esp32-racer 2026-03-10 03:17:48 -07:00
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sirlilpanda commented on issue sirlilpanda/esp32-racer#1 2026-03-09 23:21:11 -07:00
Is J5 the battery connector or BAT1?

this sounds like an exam question.

the symbols in that block are for powering external devices not the device itself, yes i could set the buck to something like 5.6v and then add diode to stop…

sirlilpanda commented on issue sirlilpanda/esp32-racer#2 2026-03-09 23:18:13 -07:00
U4 and U7 can use the same UVLO network

they could however, one buck runs at 8 volts and one runs at 5, i would perfer to have a cut off higher for the 8 volt one so that the racer can still report back that it has reached a low enough…

sirlilpanda closed issue sirlilpanda/esp32-racer#3 2026-03-09 23:15:31 -07:00
U2 could be replaced with a single-side BJT or FET switch
sirlilpanda commented on issue sirlilpanda/esp32-racer#3 2026-03-09 23:15:31 -07:00
U2 could be replaced with a single-side BJT or FET switch

could do, however the main reason for it was bom consolation as 2 are already being used for an i2c and uart buffer so another would only add an extra 20c to the bom cost

sirlilpanda commented on issue sirlilpanda/esp32-racer#4 2026-03-09 23:13:22 -07:00
Be wary of Q18's gate capacitance

thats for the real world to tell me the real value of it

sirlilpanda commented on issue sirlilpanda/esp32-racer#5 2026-03-09 23:12:29 -07:00
General comments
  1. check link to falstad sim below the fet, this is just a protection diode that should stop the fet from blowing up when turning on and off juice from the battery

  2. :)

  3. yeah yeah yeah,…

sirlilpanda pushed to main at sirlilpanda/esp32-racer 2026-03-09 00:45:05 -07:00
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da9849d7ee motor drivers are now pair to one power switch instead of all of them on one
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sirlilpanda pushed to main at sirlilpanda/esp32-racer 2026-03-09 00:40:02 -07:00
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sirlilpanda pushed to main at sirlilpanda/esp32-racer 2026-03-08 18:55:48 -07:00
8a95f813b5 moved from POWER sch
5b65c01c9d moved power connectors to their own sheet and added a buck for 6v
46e6403bef now shows what should be connected to the mcu
2148076fa8 servo interface can now either run off 5v or 6v
f3cd13f19f added addtional temp ic and an adc for current sensing of the motor driver and temp sensing of the motors themsleves
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sirlilpanda pushed to main at sirlilpanda/esp32-racer 2026-03-08 15:15:05 -07:00
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sirlilpanda pushed to main at sirlilpanda/esp32-racer 2026-03-08 15:13:46 -07:00
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