SENTSOR CORE ESP32-MICRO

OSHWLab

Description

• Super compact & powerful, measured only 35.56x35.56mm (1400x1400mil) with 3x10P standard pitch 2.54mm (100mil) pinout, packing all the onboard features.
• ESP32-WROOM-32UE, comes with latest ECO V3 Dual Core 32-bit LX6 microprocessor with clock up to 240MHz, ULP co-processor, 520kB SRAM, 16MB flash.
• 802.11b/g/n WiFi Connectivity, support mode STA/AP/STA+AP mode with external antenna using U.FL/IPEX connector allowing the board to be installed inside the enclosure without worrying transceiver signal quality.
• Bluetooth 4.2 Connectivity, support classic bluetooth and Low Energy (LE) protocol.
• CP2104 UART to USB Bridge, full-speed programmer & data port with auto-reset trigger using DTR and RTS line.
• DS3231M RTC, extremely accurate ±5ppm RTC with alarm trigger capability and onboard MS621FE rechargeable backup battery. Connected via I2C at address 0x68.
• Battery Powered, run SENTSOR board everywhere without power supply issue with 1-cell Lithium Ion/Polymer battery via JST-PH connector.
• CN3165 Battery Charger, solar-powered and USB-compatible Lithium Ion/Polymer charger with on-chip adaptive charging current for wide range of input power scenario.
• DW01A Battery Protection, battery usage protection against over-charge, over-discharge, over-current, and short circuit.
• BQ27441-G1 Battery Fuel Gauge, accurately monitor your battery Relative State of Charge (RSOC).
• RT9078 & RT9013 LDO, dual low quiescent current LDO design providing configurable +3.3V power rail up to 800mA.
• Super Low Power, measured sleep mode power consumption down to XuW (XuA XV at VBAT pin, LDO2 off).
• Built-in LED/RGB, single color active-low LED connected to pin IO2, and 4xSK6812 addressable RGB LED connected to pin IO4. SK6812 data out is exposed so you can chain it up with the rest of the LED circuit.
• MicroSD socket, connected via SPI with slave select (SS) at pin IO5.
• 22 pin GPIO @3V3 level, 3xUART, 2xSPI, 2xI2C, 2xI2S, 12bit ADC, 8bit DAC, hall-effect sensing, capacitive sensing, JTAG debug, etc. Please see pinout poster/schematic file for more information.

Documents

ESP32-MICRO SCH

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ESP32-MICRO BRD

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ESP32-MICRO PANEL

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BOM

ID	Name	Designator	Footprint	Quantity	BOM_Manufacturer Part	BOM_Manufacturer
1	MS621FE	BAT1	MS621FE	1	MS621FE	Seiko Instuments Inc.
2	RST	BTN1	SW-SMD_L3.9-W3.0-P4.45	1	TS-1088R-02026	XUNPU
3	BOOT	BTN2	SW-SMD_L3.9-W3.0-P4.45	1	TS-1088R-02026	XUNPU
4	100u, 6.3V	C1	CASE-B_3528	1	293D107X96R3B2TE3	VISHAY
5	10u	C2,C4,C7	C0402	3	CL05A106MP5NUNC	Samsung Electro-Mechanics
6	4.7u	C3,C5	C0402	2	CL05A475KP5NRNC	Samsung Electro-Mechanics
7	1u	C6,C9,C10,C11	C0402	4	CL05A105KO5NNNC	SAMSUNG
8	100n	C8,C12,C13,C14,C15,C16,C17,C18,C19	C0402	9	CC0402KRX7R7BB104	YAGEO
9	HYC80-TF08-375	CARD1	HYC80-TF08-XXX	1	HYC80-TF08-XXX	Shenzhen Huayu Chuang Precision Electronics Co., Ltd.
10	JST-PH, 2P	CN1	CONN-SMD_2P-P2.00_A2001WR-S-2P-AA	1	A2001WR-S-2P	CNJM
11	TYPEC-304S-ACP16	CN2	USB-C-SMD_TYPEC-304S-ACP16-AA	1	TYPEC-304S-ACP16	XUNPU
12	BAT60A	D1,D2	SOD-323_L1.8-W1.3-LS2.5-RD	2	BAT60AE6327HTSA1	Infineon Technologies
13	USBLC6-2SC6	D3	SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR	1	USBLC6-2SC6	STMicroelectronics
14	BAT54LP	D5	DFN-2L_L1.0-W0.6-P0.65-RD	1	BAT54LP-7	DIODES
15	BSMD0402L-035	F1	F0402	1	BSMD0402L-035	BHFUSE
16	Blue	LED1	LED-0402	1	16-213/BHC-AN1P2/3T	EVERLIGHT
17	Green	LED2	LED-0402	1	16-213/GHC-YR1S1/3T	EVERLIGHT
18	Orange	LED3	LED-0402	1	16-213UYOC/S530-A2/TR8	EVERLIGHT
19	White	LED4	LED-0402	1	16-213/T3D-AP1Q2QY/3T	EVERLIGHT
20	EC20-SK6812	LED5,LED6,LED7,LED8	SK6812-2020	4	EC20-6812	Normand
21	CJ2301	Q1	SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BR	1	CJ2301 S1	CJ
22	SL8205S	Q2	SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL	1	SL8205S	SLKORMICRO Elec.
23	UMH3N	Q3	SC-70-6_L2.2-W1.3-P0.65-LS2.1-BL	1	UMH3N	CJ
24	100k	R1,R2,R13,R14	R0402	4	RC0402FR-07100KL	YAGEO
25	10k	R3,R7,R8,R15,R16,R17,R18,R20,R29	R0402	9	RC0402FR-0710KL	YAGEO
26	3.9k	R4	R0603	1	RC0603FR-073K9L	YAGEO
27	100	R5	R0603	1	RC0603FR-07100RL	YAGEO
28	1k	R6,R22	R0402	2	RC0402FR-071KL	YAGEO
29	0.01	R9	R0603	1	STE0603MW50R010F	Walter Elec
30	1M	R10	R0402	1	RC0402FR-071ML	YAGEO
31	5.1k	R11,R12	R0402	2	RC0402FR-075K1L	YAGEO
32	300	R21	R0402	1	RC0402FR-07300RL	YAGEO
33	XC6220B331MR-G	U1,U2	TSOT-23-5_L2.9-W1.6-P0.95-LS2.8-BL	2	XC6220B331MR-G	TOREX
34	CN3165	U3	DFN-8_L3.0-W3.0-P0.50-TL-EP	1	CN3165	ShangHai Consonance Elec
35	DW01A	U4	SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL	1	DW01A	TuoFeng
36	BQ27441DRZR-G1B	U5	SON-12_L4.0-W2.5-P0.40-BL-EP	1	BQ27441DRZR-G1B	Texas Instruments
37	CH340K	U6	ESOP-10_L4.9-W3.9-P1.00-LS6.2-BL-EP	1	CH340K	WCH(Jiangsu Qin Heng)
38	ESP32-WROOM-32U/UE	U7	WIFIM-32UE-SMD_38P-L19.2-W18.0-P1.27	1	ESP32-WROOM-32UE(4MB)	Espressif Systems
39	DS3231MZ+	U8	SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL	1	DS3231MZ+	MAXIM

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Project Members

• adamalfath