2 layers83.5 × 122 mm

Pico activity tracker

ECE 362 Final Project

Size: 83.5 × 122 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 35
Nets: 71
Pads: 149
Tracks, vias: 285, 34
Pours: 2
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 23 Oct 2025
Updated: 12 Dec 2025

Overview

Pico activity tracker is an open-source printed circuit board by mgagvani, from the mgagvani/pico_activity_tracker repository on GitHub, published under the MIT licence. It is a 2-layer board of 83.5 × 122 mm with 35 parts on 71 nets, routed with 285 tracks and 34 vias.

It is built around the TPS61022, WS2812B and LSM6DS3TR-C. Its parts include 8 capacitors, 7 connectors, 5 resistors, 4 diodes and 1 IC. It belongs with the RP2040 boards of this library.

Main components

README

README.md

pico_activity_tracker

ECE 362 Final Project

Usage

Note: You will have to edit or remove the first 4 lines of platformio.ini for it to compile. Removing it should generally be fine.

Parts

Qty	Value	Footprint	References
4	WS2812B	LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm	D1, D2, D3, D4
3	0.1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2, C3, C4
3	22u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5, C6, C8
2	Conn_01x28_Socket	Connector_PinSocket_2.54mm:PinSocket_1x28_P2.54mm_Vertical	J1, J2
1	100k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3
1	100u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1
1	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5
1	10u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C7
1	1u	Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder	L1
1	3.3VoltTestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP6
1	330	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
1	5VoltTestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP5
1	6.8M	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4
1	820k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2
1	BattMinusTestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP4
1	BattPlusTestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP2
1	Conn_01x03_Socket	Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical	J3
1	Conn_01x04_Socket	Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical	J4
1	GPIO8TestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP9
1	GroundTestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP1
1	LSM6DS3TR-C	Connector_PinSocket_2.54mm:PinSocket_1x09_P2.54mm_Vertical	J6
1	MAX17048	Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical	J5
1	SCLTestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP8
1	SDATestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP7
1	SSD1306	Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical	J7
1	SW_SPST	Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W6.73mm_P2.54mm_LowProfile_JPin	SW1
1	TPS61022	Package_DFN_QFN:Texas_RWU0007A_VQFN-7_2x2mm_P0.5mm	U1

Questions

How big is the Pico activity tracker PCB?

It measures 83.5 × 122 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Pico activity tracker use?

35 parts, built around the TPS61022, WS2812B and LSM6DS3TR-C. 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 Pico activity tracker KiCad files?

From the mgagvani/pico_activity_tracker repository on GitHub, at the commit this page was made from: the board is pcb/pcb/pcb.kicad_pcb and its schematic pcb/pcb/pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Pico activity tracker design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

RP2040

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/mgagvani-pico-activity-tracker" title="Pico activity tracker in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/mgagvani-pico-activity-tracker.jpg" alt="Pico activity tracker" width="1200" height="900">

A picture that opens the board, for a README

[![Pico activity tracker](https://pcbkit.io/embed/boards/mgagvani-pico-activity-tracker.jpg?size=s)](https://pcbkit.io/boards/mgagvani-pico-activity-tracker)

Source

Repository: mgagvani/pico_activity_tracker
Board file: pcb/pcb/pcb.kicad_pcb
Commit: 4ffa8c2
Licence: MIT

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