HardLabs

Repaper

wyolum·Wyolum-old-archive·KiCad/OHSBadge/repaper.kicad_pcb

Repaper PCB layout, top view — open source AVR/Arduino board by wyolum

About the Repaper PCB

Repaper is an open source AVR/Arduino PCB design by wyolum, published on GitHub. It is a 2-layer board measuring 3.8 × 27.9 mm, with 97 components from 50 distinct parts.

Its main chip is the ATMEGA328-AU, from the AVR/Arduino family. Other key parts include the MCP9700AT-E/TT, MCP1700T-33, TXS0108, DS1307 and I/O. By type, the board carries 35 capacitors, 15 resistors, 8 connectors, 7 ICs, 7 transistors and 5 switches.

From the project

Automatically exported from code.google.com/p/clockthree

Main components on the Repaper

MCP9700AT-E/TTATMEGA328-AUMCP1700T-33TXS0108DS1307I/OMCP1702T-50

Repaper bill of materials (BOM)

97 components, 50 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP9700AT-E/TT
U1
1
ATMEGA328-AU
ATMEGA328-AU-ND
U2
1
MCP1700T-33
U3
1
TXS0108
U4
1
DS1307
U5
1
I/O
U5/7
1
MCP1702T-50
U6
1
I/O
A3
1
DMG2301U-7
Q1
4
2N7002KW
Q2, Q4, Q5, Q6
2
BSS84W
Q3, Q7
1
8MHZ
8MHz
X1
1
32.768KHZ
32.768kHz
X2
1
ZIF-40-0.5
J4
1
PCB
P1
1
ISP
P2
1
FTDI
P3
1
C3SB
P4
1
JST_3V3
JST_3V7
P5
1
V_IN
P6
Show 30 more
QtyPartRefs
1
UUSB_B
P7
4
I/O
AD7, AD7_3V3, B3, PB2
1
Batt_Clip
BT1
1
BATT_COIN
BT2
1
seeed
G2
4
I/O
H1, H2, H5, H6
1
SD_CARD_MICRO
SD1
1
ARDUINO_SHIELD
SHIELD1
1
S_LINK
SL1
1
UP
SW1
1
SEL
SW2
1
DOWN
SW3
1
RST
SW4
1
MODE
SW5
1
BAT54SW
D1
1
DB2S20500L
D2
1
DEBUG
D3
13
2.2u,16V
C1, C11, C12, C14, C17, C18, C19, C20 +5
12
0.1u,16V
C2, C3, C4, C5, C8, C26, C27, C29 +4
2
22PF
22pF
C6, C9
1
1u,16V
C7
1
2.2u,10V
C10
5
2.2u,25V
C13, C15, C16, C22, C23
1
1u,10V
C21
2
33K
33k
R1, R2
1
0R(NC)
R3
7
10K
10k
R4, R5, R6, R7, R8, R13, R16
1
2k
R9
3
100K
100k
R10, R11, R12
1
1k5
R14

Repaper design files

The KiCad project lives in the wyolum/Wyolum-old-archive repository on GitHub; these links point at the commit this page was built from.

Repaper: common questions

What microcontroller does the Repaper use?

The Repaper is built around the ATMEGA328-AU, from the AVR/Arduino family.

How big is the Repaper PCB?

The Repaper measures 3.8 × 27.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Repaper?

97 components, from 50 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 Repaper design files?

From the wyolum/Wyolum-old-archive repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Repaper design in my own project?

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

Can I test firmware for the Repaper 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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