Name: SparkFun IoT RedBoard - ESP32 Development Board
Brand: SparkFun

Parts › Development Boards › ESP32 Boards

WRL-19177 · SparkFunActive

SparkFun IoT RedBoard - ESP32 Development Board photo

SparkFun IoT RedBoard - ESP32 Development Board illustration

The IoT RedBoard is an ESP32 WROOM-equipped development board that has everything you need in an Arduino Uno with extra perks like USB-C, Qwiic, and more. (SparkFun WRL-19177)

Part number	WRL-19177
Manufacturer	SparkFun
Category	Development Boards › ESP32 Boards
Pins	78

SparkFun IoT RedBoard - ESP32 Development Board pinout

Pin	Name	Type
1	ESP32_SCL	bidirectional
2	ESP32_SDA	bidirectional
3	3.3V	power
4	GND	ground
5	ESP32_GPIO18_SCK	bidirectional
6	ESP32_GPIO19_POCI	bidirectional
7	ESP32_GPIO23_PICO	bidirectional
8	ESP32_GPIO5_!CS!	bidirectional
9	ESP32_GPIO27	bidirectional
10	ESP32_GPIO26	bidirectional
11	ESP32_GPIO25	bidirectional
12	ESP32_GPIO17	bidirectional
13	ESP32_GPIO16	bidirectional
14	ESP32_GPIO14_HDR	bidirectional
15	ESP32_GPIO13_HDR	bidirectional
16	ESP32_GPIO4	bidirectional
17	ESP32_TXD0	bidirectional
18	ESP32_RXD0	bidirectional
19	ESP32_SCL	bidirectional
20	ESP32_SDA	bidirectional
21	3.3V	power
22	GND	ground
23	ESP32_GPIO18_SCK	bidirectional
24	ESP32_GPIO19_POCI	bidirectional
25	ESP32_GPIO23_PICO	bidirectional
26	ESP32_GPIO5_!CS!	bidirectional
27	ESP32_GPIO27	bidirectional
28	ESP32_GPIO26	bidirectional
29	ESP32_GPIO25	bidirectional
30	ESP32_GPIO17	bidirectional
31	ESP32_GPIO16	bidirectional
32	ESP32_GPIO14_HDR	bidirectional
33	ESP32_GPIO13_HDR	bidirectional
34	ESP32_GPIO4	bidirectional
35	ESP32_TXD0	bidirectional
36	ESP32_RXD0	bidirectional
37	5V_MEAS	bidirectional
38	N19	bidirectional
39	ESP32_GPIO14_TMS	bidirectional
40	ESP32_GPIO13_TCK	bidirectional
41	ESP32_GPIO15_TDO	bidirectional
42	ESP32_GPIO12_TDI	bidirectional
43	10	bidirectional
44	1	bidirectional
45	GND	ground
46	GND	ground
47	GND	ground
48	GND	ground
49	V_BATT	bidirectional
50	GND	ground
51	LED_DO	bidirectional
52	3.3V	power
53	ESP32_EN	bidirectional
54	3.3V	power
55	5V	power
56	GND	ground
57	GND	ground
58	VIN	power
59	ESP32_ADC5	bidirectional
60	ESP32_ADC4	bidirectional
61	ESP32_ADC7	bidirectional
62	ESP32_ADC6	bidirectional
63	ESP32_ADC3	bidirectional
64	ESP32_ADC0	bidirectional
65	LED_DO	bidirectional
66	3.3V	power
67	ESP32_EN	bidirectional
68	3.3V	power
69	5V	power
70	GND	ground
71	GND	ground
72	VIN	power
73	ESP32_ADC5	bidirectional
74	ESP32_ADC4	bidirectional
75	ESP32_ADC7	bidirectional
76	ESP32_ADC6	bidirectional
77	ESP32_ADC3	bidirectional
78	ESP32_ADC0	bidirectional

Schematic symbol and footprint

Footprint: SparkFun IoT RedBoard ESP32 Development Board (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.