2 layers31.7 × 38.1 mm Microbug, the printed circuit board in 3D

Microbug

Size: 31.7 × 38.1 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 29
Nets: 34
Pads: 94
Tracks, vias: 187, 28
Pours: 2
Routed: Yes
KiCad: KiCad 5 (file 20210824)
Created: 24 Sep 2021
Updated: 22 Oct 2021

Overview

Microbug is an open-source printed circuit board by elamdf, from the elamdf/hope-pcbs repository on GitHub. It is a 2-layer board of 31.7 × 38.1 mm with 29 parts on 34 nets, routed with 187 tracks and 28 vias.

It is built around the ATTINY1616-SN, TC78H660FNG,EL and QRE1113GR. Its parts include 10 resistors, 4 ICs, 4 connectors, 3 capacitors and 3 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

Parts

Qty	Value	Footprint	References
3	10k	Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R3, R5, R10
3	220	Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R1, R6, R7
3	LED	LED_THT:LED_D3.0mm	D1, D2, D3
2	100	Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R2, R4
2	Conn_01x02	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J3, J4
2	Motor_DC	microbug-fplib:micro_motor_5mm	M1, M2
2	QRE1113GR	OptoDevice:OnSemi_CASE100CY	U2, U3
1	0.1u	Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C1
1	10u	Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C3
1	1u	Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C2
1	470	Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R8
1	47k	Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R9
1	ATtiny1616-S	Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm	U1
1	Battery_Cell	microbug-fplib:BK-883	BT1
1	Conn_01x03	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J2
1	Conn_01x04	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J1
1	LOGO	microbug-fplib:bac-logo	G***
1	LOGO	microbug-fplib:ieee-logo	G***
1	TC78H660FNG	Package_SO:TSSOP-16_4.4x5mm_P0.65mm	U5

Questions

How big is the Microbug PCB?

It measures 31.7 × 38.1 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Microbug use?

29 parts, built around the ATTINY1616-SN, TC78H660FNG,EL and QRE1113GR. 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 Microbug KiCad files?

From the elamdf/hope-pcbs repository on GitHub, at the commit this page was made from: the board is microbug/microbug.kicad_pcb and its schematic door_control/door_control.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Microbug design in my own project?

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

Category and platform

AVR (ATmega, ATtiny)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/elamdf-hope-pcbs-microbug" title="Microbug 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/elamdf-hope-pcbs-microbug.jpg" alt="Microbug" width="1200" height="900">

A picture that opens the board, for a README

[![Microbug](https://pcbkit.io/embed/boards/elamdf-hope-pcbs-microbug.jpg?size=s)](https://pcbkit.io/boards/elamdf-hope-pcbs-microbug)

Source

Repository: elamdf/hope-pcbs
Board file: microbug/microbug.kicad_pcb
Commit: f3cf9f1
Licence: Not stated

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