W1070 starts blocking commands after some time about benqprojector.py HOT 6 CLOSED

Found some possibly relevant info here: JohnBrodie/pyjector#1

Though if I'm following that right they resolved it by just waiting for the '>' before issuing the command, which wouldn't explain why it isn't working when manually issuing the command via telnet where I definitely wait for that.

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Hi @DarkStarSword , thanks for using my library and debugging it. My projector (W1110) is actually blocking all commands during warming up/cooling down the device. Could this also be the case in your situation?

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That happens as well, but the issue I'm seeing is when the projector has been completely off for some time. It happened again earlier today and when I looked at the projector I noticed the power and temp lights were both flashing red, so perhaps the projector has got in some sort of error state - I didn't notice that yesterday though, so I'll keep an eye on it.

Also, it's possible that the esp-link device is causing problems since it seems to be sending boot messages over serial that might be confusing the projector. That firmware has an option to swap the serial to other pins, but that was causing other issues for me yesterday - I might go back and see if I can get that sorted at least.

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I may have worked out what is going on here - it seems that esp-link sends its own debug logs over the serial console by default (in addition to the esp boot messages) and that was putting the projector into a bad state. So, to use esp-link to control a projector we must set:

• Home -> Pin Assignment:
• • UART pins = swapped (i.e. use gpio15 as TX + gpio13 as RX)
• • Other pins disabled
• • RX pullup enabled (haven't checked if that is actually necessary, might depend on the RS232 to TTL adapter)
• Debug Log:
• • UART debug log: off

It was an inconsistent failure before, so I'll keep monitoring in case this isn't actually the correct fix, but for now I'll close this ticket.

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Is your ESP powered from the USB of the projector? The USB on my projector is only powered on when the projector is powered on

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No, I've got it powered from an external USB charger

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