ESP32-D1 Breakout Board - EasyEDA open source hardware lab

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STD ESP32-D1 Breakout Board

License: Public Domain

Mode: Editors' pick

Update time： 2021-08-04 09:13:09

Creation time： 2021-07-23 10:02:59

Description

ESP32 Breakout Board with SMD components, where available.

Connect either External Power (up to 20VDC), or a Battery charger. DO NOT connect these two in parallel. it is the same terminal.

Use Jumpers to Set:

Bat Charger On - Off.

this will connect the Charger terminal to the Battery terminal.

9V Bypass

option 1: 9V from 7809 is distributed across the +9V terminals. to be used when having Batteries or Power of over 10VDC.

option 2: to be used when having Batteries of 7.2VDC, which is not enough to power up the 7809. it bypasses the 7809, and distributes this power across the +9V terminals

Battery or Power Selector

Choose between powering by Bat or by External Power (=Charger)

To Connect with Arduino IDE

Use the Arduino IDE to connect via the micro usb port

assign port numbers as per the labels (just the number, i.e. "pinMode(0, OUTPUT);" is labeled "IO0")

PWM Ports are labeled ~

Analog ports are labeld

PORTS assignment and Labelling

Arduino IDE Pin Number	BOARD Label	GPIO Name	ESP32-D1 Pin Number	Comments
39	LIGHT1_ANALOG	IO39/SVN	3	Analog
36	LIGHT2_ANALOG	GPIO36/SVP	12	Analog
35	SOIL1_ANALOG	IO35/GPIO35	4	Analog
26	SOIL2_ANALOG	IO26/GPIO26	13	Analog
33	RELAY1	IO33/GPIO33	5	Digital
18	RELAY2	IO18/GPIO18	14	Digital
34	RELAY3	IO34/GPIO34	6	Analog - Wrong Label
19	DHT11	IO19/GPIO19	15	Digital
14	IR_OBSTACLE	IO14/TMS	7	Digital
9	SERVO2	IO9/SD2	9	Digital
5	ULTRASONIC TRIG	IO5/GPIO5	17	Digital
23	ULTRASONIC ECHO	IO23/GPIO23	16	Digital
2	SERVO1 ~	IO2/PWM0:0	28	Digital - PWM
16	IO16	IO16	36	Digital
17	IO17	IO4/GPIO17	35	Digital
0	IO0 ~	IO0/PWM0:1	27	Digital
4	IO4 ~	IO04/PWM0:2	26	Digital
12	IO12	IO12/TDI	25	Digital
32	IO32	IO32/GPIO32	24	Digital
25	IO25	IO25/GPIO25	25	Digital
27	IO27	IO27/GPIO27	22	Digital

ESP32-D1 Pin Number Assignement

1	11	31	21
2	12	32	22
3	13	33	23
4	14	34	24
5	15	35	25
6	16	36	26
7	17	37	27
8	18	38	28
9	19	39	29
10	20	40	30

Design Drawing

schematic diagram

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ESP32_BOARD
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PCB

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PCB_EPS32-SMT
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	10uF	C9,C4,C3	C0603	3
2	7809	U1	TO-252-2_L6.6-W6.1-P4.57-LS9.9-BR-CW	1
3	MTP125-1103S1	BAT_CHARGE1,POWER_SELECTOR1,9V_JUMPER	HDR-TH_3P-P2.54-V-M-1	3
4	DIGITAL_IOS	U3	CONN-TH_9P-P5.00_DB128V-5.0-9P	1
5	DB301V-5.0-3P	RELAY3,IR_OBSTACLE,SOIL1_ANALOG,RELAY2,LIGHT2_ANALOG,RELAY1,DHT11,SERVO1,LIGHT1_ANALOG,SOIL2_ANALOG,SERVO2	CONN-TH_DB301V-5.0-3P	11
6	KF301-5.0-2P	CHARGER1,BATTERY1,I2C	CONN-TH_P5.00_KF301-5.0-2P	3
7	GY-521	GYRO_GY-521	GY-521	1
8	300	R2,R3	R0603	2
9	DC-005-5A-2.0-SMT	DC_INPUT	DC-IN-TH_DC-005-5A-2.0-SMT	1
10	LTST-C281KGKT	LED2,LED3,LED1	LED-SMD_L1.0-W0.5-RD	3
11	AMS1117-5.0_C347223	7805	SOT-223_L6.7-W3.5-P2.30-BR	1
12	DB128L-5.0-4P-BU-S	ULTRASONIC,TXRX1,IO_POWER	CONN-TH_4P-5.00_DB128L-5.0-4P-BU-S	3
13	Header-Female-2.54_2x3	9V,3.3V,5V,IOS	HDR-TH_6P-P2.54-V-F-R2-C3-S2.54	4
14	22uF	C2,C1,C5	CAP-SMD_BD5.0-L5.3-W5.3-FD	3
15	100	R1	R0603	1
16	GY-521 Socket	GYRO_SOCKET1	HDR-TH_8P-P2.54-V	1
17	AZ1117H-3.3TRE1	7803	SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR	1
18	ESP32-d1	ESP32	ESP32-D1	1
19	Header-Female-2.54_2x10	P1,P2	HDR-TH_20P-P2.54-V-R2-C10-S2.54	2
20	2K	R4,R5	R0603	2
21	LIGHT_I2C	CN1	CONN-TH_5P-P3.81_KF124-3.81-5P	1