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Sra dev board 2026

SRA-VJTI·sra-board-hardware-design·sra_dev_board_2026/sra_dev_board_2026.kicad_pcb

Top view of the Sra dev board 2026 PCB
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Sra dev board 2026 is an open source ESP32 PCB design by SRA-VJTI: a 2-layer, 90.2 × 90 mm board with 145 components (48 distinct parts). It is built around the ESP32-WROOM-32E, CH340C, TB6612FNG H-bridge Motor Driver, MP1584 and more. Filed under robotics & motion and dev boards & breakouts and power & battery.

ESP32-based Development Board for Robotics and Embedded Applications

The SRA board is a development board based on ESP32 with on-board peripherals like a programmable LED matrix, switches, sensor ports for Line Sensor Array and MPU-6050, protection circuit for over-current and reverse voltage, and motor drivers.

- SRA Board 2026 - Table of Contents - Board Images - About the Project - Getting Started with a Development Board - Notable problems in the current SRA Board - Improvements Suggested for Future Iterations - Potential Future Enhancements - 3D Models - Milestones - Contributors - Acknowledgements and Resources - License

Sra dev board 2026, from the project README
From the project README

Built around

ESP32-WROOM-32ECH340CTB6612FNG H-bridge Motor DriverMP1584AMS1117-3.374HC595

Parts list

145 components, 48 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32E
U1
1
CH340C
U2
1
TB6612FNG H-bridge Motor Driver
U3
1
MP1584
U4
1
AMS1117-3.3
U5
4
74HC595
U6, U7, U8, U9
2
SS8050
Q1, Q2
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
3
B2B-XH-A_LF__SN_
J2, J3, J6
1
Barrel_Jack_Switch
J4
1
SCREW_TERMINAL_01X02
Screw_Terminal_01x02
J5
4
CONN_01X03_MALE
Conn_01x03_Male
J7, J8, J9, J10
1
CONN_01X08_FEMALE
Conn_01x08_Female
J11
1
CONN_01X04_FEMALE
Conn_01x04_Female
J12
1
CONN_01X07_JST
Conn_01x07_JST
J13
2
CONN_01X14
Conn_01x14
J14, J15
1
CONN_01X10
Conn_01x10
J16
3
CONN_01X03
Conn_01x03_Pin
J20, J21, J22
1
3A
F1
1
1A
F2
Show 28 more
QtyPartRefs
2
SW_Push_DPDT
SW1, SW2
1
SW_0
SW3
1
SW_EN
SW4
2
SS14
D1, D4
1
SP0503BAHT
D2
1
SS34
D3
1
D_Schottky
D5
33
LED
D6, D7, D8, D16, D17, D18, D19, D20 +25
1
15UH
15uH
L1
8
0.1UF
0.1uF
C1, C3, C10, C12, C13, C14, C25, C26
1
0.1uF
C2
1
10UF
10uF
C4
1
100NF
100nF
C5
1
150PF
150pF
C6
1
NS
C7
1
22UF
22uF
C8
1
10UF
10uF
C9
1
22UF
22uF
C11
5
10K
R1, R4, R5, R51, R52
2
5.1K
R2, R3
4
1k
R6, R7, R8, R9
3
100K
100k
R10, R12, R13
1
24.9K
24.9k
R11
1
210K
210k
R14
1
40.2K
40.2k
R15
32
330R
330
R16, R17, R18, R19, R20, R21, R22, R23 +24
3
4.7K
4.7k
R46, R60, R61
2
1.2K
R47, R50

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