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Board does not power up correctly on Jarvis desks #6

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tjhorner opened this issue Jun 18, 2022 · 0 comments
Open

Board does not power up correctly on Jarvis desks #6

tjhorner opened this issue Jun 18, 2022 · 0 comments
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bug Something isn't working pcb
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tjhorner commented Jun 18, 2022

As discussed in #4, Jarvis desks have some issues with the v1 board that can be resolved but only temporarily and hackily. The board will fail to power up when connected directly to the control box. This is due to pin 8 of the RJ45 jack being wired to D8. Pin D8 is also clock select (CS), and will result in a boot failure if pulled high during startup. The desk control box pulls this pin high during boot so the ESP8266 never starts.

I want to fix this issue in v2 of the board. Since I'm probably going to use an ESP32 module instead of a D1 Mini, this will be solved by using a GPIO pin that isn't attached to any other function of the chip.

A workaround for the issue is provided in the wiki. If you are affected by this issue and wish to help test out the v2 boards when the time comes, fill out this form to register your interest.

@tjhorner tjhorner added bug Something isn't working pcb labels Jun 18, 2022
@tjhorner tjhorner added this to the Board v2 milestone Jun 18, 2022
@tjhorner tjhorner self-assigned this Jun 18, 2022
@tjhorner tjhorner changed the title Jarvis desks do not power up correctly without external power Board does not power up correctly on Jarvis desks without external power Jun 18, 2022
@tjhorner tjhorner changed the title Board does not power up correctly on Jarvis desks without external power Board does not power up correctly on Jarvis desks Jun 18, 2022
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