ESP32-S3 (WROOM) Small Dev

Ongoing

STD ESP32-S3 (WROOM) Small Dev

License: Public Domain

Mode:

Editors' pick

Update time： 2022-06-23 10:44:02

Creation time： 2021-11-16 10:21:47

Description

Minimalistic breadboard friendly small dev board for ESP32-S3-WROOM-1 modules

2 layers
12uA current in deep sleep (using ESP-IDF deep sleep example)
weak, but typically sufficient, voltage regulator (constant current 250mA, pulsed current 550mA)
PMOS for reverse polarity protection on VIN
Arduino IDE compatible pin names for I2C and SPI

See https://oshwlab.com/Miraculix200/esp32-s3-mini_copy for a circuit with more powerful voltage regulator

Names next to the pin numbers were taken from the Espressif Arduino IDE repository (ignore the wrong numbers in the photos, which have been updated).

Design Drawing

schematic diagram

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PCB

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BOM

ID	Name	Designator	Footprint	Quantity
1	10u	C1	C0805	1
2	100n	C2,C6	C0603	2
3	22u	C3,C4	C0805	2
4	1u	C5	C0603	1
5	HDR-M-2.54_1x2	J1,J2	HDR-M-2.54_1X2	2
6	HDR-M-2.54_1x8	J5,J6	HDR-M-2.54_1X8	2
7	3x6x2.5mm	KEY1	KEY-3.0*6.0	1
8	AO3401A	Q1	SOT-23_L2.9-W1.3-P0.95-LS2.4-BR	1
9	10k	R1	R0603	1
10	MCP1700T-3302E/TT	U1	SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR	1
11	ESP32-S3-WROOM-1	U2	ESP32-S3-WROOM-1	1