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Sun sensor

vatsalbansal123·sun-sensor-pcb

Sun sensor PCB layout, top view — open source board by vatsalbansal123

About the Sun sensor PCB

Sun sensor is an open source PCB design by vatsalbansal123, published on GitHub. It is a 2-layer board measuring 26 × 19 mm, with 25 components from 8 distinct parts.

Other key parts include the OPA320AIDBVR and ADS1115IDGS. By type, the board carries 9 capacitors, 6 resistors, 5 ICs, 4 LEDs and 1 connector.

It belongs with the sensors designs in this gallery.

From the project

A compact analog sun-sensor board that converts sunlight into a voltage signal using photodiodes, op-amps, and an ADC.

A compact analog sun-sensor board that converts sunlight into a voltage signal using photodiodes, op-amps, and an ADC.

- J1 — 1×4 pin header, 1.27 mm pitch (I²C: SDA / SCL, plus power/ground)

- Capacitors: 10pF (C1, C2, C5, C6 — op-amp feedback/compensation), 100n (C3, C4, C7, C8, C9 — decoupling), all 0603 SMD - Resistors: 3.3k (R1–R4 — op-amp feedback/gain, one per channel), 4.7k (R5, R6 — I²C pull-ups), all 0603 SMD

Sun sensor, from the project README
From the project README

Main components on the Sun sensor

OPA320AIDBVRADS1115IDGS

Sun sensor bill of materials (BOM)

25 components, 8 distinct parts.

QtyPartRefs
4
OPA320AIDBVR
U1, U2, U3, U4
1
ADS1115IDGS
U5
1
Conn_01x04_Pin
J1
4
PDB-C154SM
LED1, LED2, LED3, LED4
4
10pF
C1, C2, C5, C6
5
100n
C3, C4, C7, C8, C9
4
3.3k
R1, R2, R3, R4
2
4.7k
R5, R6

Sun sensor design files

The KiCad project lives in the vatsalbansal123/sun-sensor-pcb repository on GitHub; these links point at the commit this page was built from.

Sun sensor: common questions

How big is the Sun sensor PCB?

The Sun sensor measures 26 × 19 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sun sensor?

25 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Sun sensor design files?

From the vatsalbansal123/sun-sensor-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Sun sensor design in my own project?

The repository has no license, so all rights stay with vatsalbansal123. Use it as a reference, and ask the author before reusing the design.

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