2AHMR-ESP32S deep sleep current

[dontsov]

I try to find "10uA" consumption with ESP32-CAM module.


ESP32-CAM schematic


Module "out of the box" has 2800uA
Remove camera: 1800uA
Unsolder AMS1117 LDO. No LDO, no camera: 400uA

adding this code safe about 100uA.
pinMode(OUTPUT_OPEN_DRAIN, GPIO_NUM_12);
pinMode(OUTPUT_OPEN_DRAIN, GPIO_NUM_15);

Now 260uA. Good.

Define CONFIG_ULP_COPROC_ENABLED 1 or 0 not affected.

Add adc_power_off(); no affect.
Remove PSRAM memory.
Now ~170uA. Good.

Remove Q1, Q2 transistors - no affect.

Where is 10uA ?!

I has another chip: ESP32-WROOM-32. He's consumption is 17uA (with 2 x MCP1700-33 LDOs).