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BenchBudEE

ContextualElectronics·BenchBudEE

BenchBudEE PCB layout, top view — open source AVR/Arduino board by ContextualElectronics
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About the BenchBudEE PCB

BenchBudEE is an open source AVR/Arduino PCB design by ContextualElectronics, published on GitHub under the MIT license. It is a 2-layer board measuring 165.1 × 63.5 mm, with 157 components from 55 distinct parts.

Its main chip is the ARDUINOPINS, from the AVR/Arduino family. Other key parts include the LTV-816S, MCP3901, LMT84, OPA4170 and MCP4801. By type, the board carries 63 resistors, 33 capacitors, 12 diodes, 10 ICs, 8 test points and 7 connectors.

From the project

The Session 1 Project For Contextual Electronics

Main components on the BenchBudEE

LTV-816SMCP3901LMT84OPA4170MCP4801LM337TAP5726LM317T

BenchBudEE bill of materials (BOM)

157 components, 55 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LTV-816S
U1
1
MCP3901
U2
1
LMT84
U3
1
OPA4170
U4
1
MCP4801
U5
2
LM337T
U6, U8
1
AP5726
U7
2
LM317T
U9, U11
1
2N3904
Q1
1
DMN65D8L-7
Q2
2
AOD476
Q3, Q4
1
24 Pin MiniFit JR
P1
1
CONN_3X2
P2
1
CONN_2
P3
1
12 Pin Terminal Block
P4
1
3 Pin TB
P5
2
CONN_1
P6, P7
1
VAL**
3 mm
1
ARDUINOPINS
ARD1
4
JUMPER
JP1, JP2, JP3, JP4
Show 35 more
QtyPartRefs
1
1461069-5
K1
2
CONN_3
K2, K3
1
Power Switch
SW1
5
MINISMDC050F-2
TH1, TH2, TH3, TH4, TH5
1
5V
TP1
1
CH1
TP2
1
CH0
TP3
1
+12P
TP4
1
RELAY_LOW
TP5
1
AGND
TP6
1
GND_PWR
TP9
1
DAC_OUT
TP10
1
LG Q971-KN-1
D1
2
B130-13-F
D2, D4
8
MMBD914-7-F
D3, D6, D7, D8, D9, D10, D11, D12
1
B0540WS-7
D5
3
CM322522-220KL
L1, L2, L3
1
22u
L4
1
INDUCTOR
L5
24
C
C1, C7, C8, C9, C10, C11, C12, C13 +16
3
C
C2, C3, C4
2
1U
C5, C6
4
C
C26, C27, C28, C29
1
500
R1
1
200
R2
9
0
R3, R5, R6, R48, R49, R58, R61, R62 +1
1
100
R4
4
R
R7, R8, R9, R10
19
R
R11, R12, R13, R14, R15, R22, R23, R24 +11
1
R
R16
1
15
R17
2
715
R18, R21
2
5K
R19, R20
20
R
R27, R28, R29, R30, R31, R32, R33, R34 +12
2
1K
R59, R60

BenchBudEE design files

The KiCad project lives in the ContextualElectronics/BenchBudEE repository on GitHub; these links point at the commit this page was built from.

BenchBudEE: common questions

What microcontroller does the BenchBudEE use?

The BenchBudEE is built around the ARDUINOPINS, from the AVR/Arduino family.

How big is the BenchBudEE PCB?

The BenchBudEE measures 165.1 × 63.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BenchBudEE?

157 components, from 55 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 BenchBudEE design files?

From the ContextualElectronics/BenchBudEE repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the BenchBudEE design in my own project?

Yes, under the terms of its MIT license, which ContextualElectronics chose for the repository.

Can I test firmware for the BenchBudEE 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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