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Pi top Glimmer

uChip·pi-top_Glimmer

Pi top Glimmer PCB layout, top view — open source AVR/Arduino board by uChip
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About the Pi top Glimmer PCB

Pi top Glimmer is an open source AVR/Arduino PCB design by uChip, published on GitHub. It is a 4-layer board measuring 65 × 56 mm, with 102 components from 23 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the AP7215-33YG, 74LV164 and TSOP38238. By type, the board carries 64 diodes, 10 capacitors, 8 transistors, 7 resistors, 6 connectors and 5 ICs.

From the project

Accessory board for pi-topCEED and pi-top laptor

NOTE: This project is a work in progress and is subject to change. See the Status section for recent changes.

This repository contains the design files and write-up for pi-top_Glimmer.

Note: I have no affiliation with pi-top other than being a customer.

The pi-top Glimmer is an accessory board for the pi-topCEED. It also fits the pi-top laptop. The board reconstitutes the Raspberry Pi GPIO connector. Unlike the pi-topPROTO the Glimmer places the connector optimally for connecting the "T-Cobbler Plus - GPIO Breakout" or the "Pi Wedge".

Pi top Glimmer, from the project README
From the project README

Main components on the Pi top Glimmer

AP7215-33YGATMEGA328P-AU74LV164TSOP38238

Pi top Glimmer bill of materials (BOM)

102 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AP7215-33YG
U1
1
ATMEGA328P-AU
U2
2
74LV164
U3, U4
1
TSOP38238
U5
8
IRFML8244
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8
1
8MHz
Y1
1
CONN_01X06
J1
1
CONN_02X03
J2
1
CONN_02X17
J3
1
CONN_02X20
J4
1
CONN_02X17
J5
1
SPST_Jumper
J6
64
RED
D1, D2, D3, D4, D5, D6, D7, D8 +56
1
2.2uH
L1
2
10uF
C1, C3
8
0.1uF
C2, C4, C5, C6, C7, C8, C9, C10
1
10k
R1
1
4.48k
R3
1
715R
R4
1
300R
R5
Show 3 more
QtyPartRefs
1
3k
R6
1
2.2k
R7
1
3.3k
R8

Pi top Glimmer design files

The KiCad project lives in the uChip/pi-top_Glimmer repository on GitHub; these links point at the commit this page was built from.

Pi top Glimmer: common questions

What microcontroller does the Pi top Glimmer use?

The Pi top Glimmer is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Pi top Glimmer PCB?

The Pi top Glimmer measures 65 × 56 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Pi top Glimmer?

102 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Pi top Glimmer design files?

From the uChip/pi-top_Glimmer repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Pi top Glimmer design in my own project?

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

Can I test firmware for the Pi top Glimmer without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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