2 layers51.5 × 63 mm Sensor Reader V4, the printed circuit board in 3D

Sensor Reader V4

Complete electical design and microcontroller code

Size: 51.5 × 63 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 70
Nets: 46
Pads: 226
Tracks, vias: 754, 69
Pours: 1
Routed: Yes
KiCad: KiCad 10.0 (file 20260206)
Created: 1 Jan 2026
Updated: 3 Sep 2026

Overview

Sensor Reader V4 is an open-source printed circuit board by Inverated, from the Inverated/Proa-II-Electrical-Setup repository on GitHub. It is a 2-layer board of 51.5 × 63 mm with 70 parts on 46 nets, routed with 754 tracks and 69 vias.

It is built around the ESP32-C3-WROOM-02-H4, ADS8688IDB and TLV76733DGNR. Its parts include 22 capacitors, 19 resistors, 3 ICs, 3 connectors and 2 switches. It belongs with the sensors and measurement boards and the ESP32 and RISC-V boards of this library.

Main components

README

readme.md

Installing PySpice and NgSpice for electonic circuit simulation

bash

pip install pyspice

pyspice-post-installation --install-ngspice-dll

pyspice-post-installation --check-install

Note:

Spice identifier name should not start with number or 'v'

Number used to indicate array index for MPPT and solar panels
v prefix added by ngspice removed for result output

Category and platform

Sensors and measurement ESP32 RISC-V

Project files

Show this board on your page

https://pcbkit.io/boards/Inverated/Proa-II-Electrical-Setup

The board's own page, for a message or a post.

Source

Repository: Inverated/Proa-II-Electrical-Setup
Board file: KiCad/Sensor Reader V4 - Copy/Sensor Reader V4.kicad_pcb
Commit: 2b72598
Licence: Not stated
Copies: 2 copies in 3 repositories

Parts

Qty	Value	Footprint	References
8	1kΩ	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R8, R9, R10, R11, R12, R13, R14, R15
8	4.7nF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C14, C15, C16, C17, C18, C19, C21, C22
8	TestPoint	TestPoint:TestPoint_Pad_D1.0mm	CS, SCLK, SDI, SDO, TP1, TP2, TP3, TP8
6	1uF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C2, C4, C7, C9, C10, C13
5	10kΩ	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R3, R4, R5, R6, R7
5	10uF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C5, C8, C12, C20, C23
2	100kΩ	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R16, R18
2	20kΩ	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R17, R19
2	5.1Ω	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2
1	100nF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C6
1	10uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C11
1	3.3V_Output	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J16
1	4.7uF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C3
1	5V_Input	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	5V_In
1	ADS8688	SamacSys_Parts:SOP50P640X120-38N	U3
1	AIN_4	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	AIN_4
1	AIN_5	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	AIN_5
1	B1_Net/B2_In	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	B1_Net/B2_In
1	B2_Net/B2_Out	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	B2_Net/B2_Out
1	BOOT_Btn	SamacSys_Parts:TS0266100BK100LCRD	SW1
1	Batt1_V	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	Batt1_V
1	Batt2_V	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	Batt2_V
1	EN_Btn	SamacSys_Parts:TS0266100BK100LCRD	SW2
1	ESP32-C3-WROOM-02-H4	SamacSys_Parts:ESP32C3WROOM02H4	IC2
1	Exposed_UART	Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical	J6
1	L_I/B1_Out	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	Load_In/B1_Out
1	M_OUT/B1_In	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	MPPT_Out/B1_In
1	TLV76733DGNR	SamacSys_Parts:SOP65P490X110-9N	IC1
1	UJ20-C-H-G-MSMT-2B-P16-TR	SamacSys_Parts:UJ20CHGMSMT2BP16TR	J2

The 66 most common of 70 parts.

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Questions

How big is the Sensor Reader V4 PCB?

It measures 51.5 × 63 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Sensor Reader V4 use?

70 parts, built around the ESP32-C3-WROOM-02-H4, ADS8688IDB and TLV76733DGNR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Sensor Reader V4 KiCad files?

From the Inverated/Proa-II-Electrical-Setup repository on GitHub, at the commit this page was made from: the board is KiCad/Sensor Reader V4 - Copy/Sensor Reader V4.kicad_pcb and its schematic KiCad/Final Design/Final Design.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Sensor Reader V4 design in my own project?

Its repository states no licence, so its author keeps all rights: ask Inverated before reusing the design.