Search found 4 matches
- Tue Jun 23, 2020 8:15 am
- Forum: Hardware
- Topic: esp32-wroom-32 start on battery power on without requiring boot button
- Replies: 8
- Views: 10416
Re: esp32-wroom-32 start on battery power on without requiring boot button
Hello, I had a solution from espressif support after exchanging some details of my circuitry. My issue was with the fact that I kept a capacitor attached to IO0. I used the dev kit schematic as a guideline, however, I think that in the latest update they also removed it. That capacitor does not let ...
- Wed Jun 17, 2020 2:03 pm
- Forum: Hardware
- Topic: esp32-wroom-32 start on battery power on without requiring boot button
- Replies: 8
- Views: 10416
Re: esp32-wroom-32 start on battery power on without requiring boot button
Hello mikemoy, Thank you for your reply, By following that suggestion do you mean that by applying an RC circuit to delay the activation of CHIP_PU? "...The chip should be activated after the power rails have stabilized. This is achieved by delaying the activation of CHIP_PU (Pin9) after the 3.3 V r...
- Tue Jun 16, 2020 3:25 pm
- Forum: Hardware
- Topic: esp32-wroom-32 start on battery power on without requiring boot button
- Replies: 8
- Views: 10416
Re: esp32-wroom-32 start on battery power on without requiring boot button
Hello Beowulff and thank you for your reply,
Yes, I have a 10k Resistor from EN to VDD (the same power supply as batteries) and a 0.1uF capacitor to GND. Best regards,
Yes, I have a 10k Resistor from EN to VDD (the same power supply as batteries) and a 0.1uF capacitor to GND. Best regards,
- Mon Jun 15, 2020 2:55 pm
- Forum: Hardware
- Topic: esp32-wroom-32 start on battery power on without requiring boot button
- Replies: 8
- Views: 10416
esp32-wroom-32 start on battery power on without requiring boot button
Greetings, I have a custom board that integrates the esp32-wroom-32 with minimal peripherals. This device's application demands that the chip remains in deep sleep (~5uA) for most of the time. I currently have it operating with some batteries however, whenever I place a new set of batteries, I alway...