HardLabs

MainPCB REV 3

nolanconrad·SeniorDesignProject16·MainPCB_REV_3/MainPCB_REV_3.kicad_pcb

MainPCB REV 3 PCB layout, top view — open source AVR/Arduino board by nolanconrad

About the MainPCB REV 3 PCB

MainPCB REV 3 is an open source AVR/Arduino PCB design by nolanconrad, published on GitHub. It is a 2-layer board measuring 70.2 × 67.8 mm, with 66 components from 40 distinct parts.

Its main chip is the Arduino_Nano_ESP32, from the AVR/Arduino family. Other key parts include the INA226 and DRV8871DDA. By type, the board carries 16 resistors, 15 test points, 12 capacitors, 10 diodes, 4 switches and 3 ICs.

From the project

Yes.

Main components on the MainPCB REV 3

INA226DRV8871DDAArduino_Nano_ESP32

MainPCB REV 3 bill of materials (BOM)

66 components, 40 distinct parts.

QtyPartRefs
2
INA226
U1, U2
1
DRV8871DDA
U3
1
Arduino_Nano_ESP32
A1
1
12V DC PUMP
J1
1
Barrel_Jack
J2
1
TMP117s
J3
1
Fuse
F1
1
+ BUTTON
S1
1
- BUTTON
S2
1
AUTO BUTTON
S3
1
L101011MS02Q
SW1
2
GND
TP1, TP2
2
PGND
TP3, TP4
1
SCL
TP5
1
V_3.3
TP6
1
V_Buck
TP7
1
DRV
TP8
1
PWM
TP9
1
I_Pump
TP10
1
I_Logic
TP11
Show 20 more
QtyPartRefs
1
V_Pump
TP12
1
V_Esp32
TP13
1
TMP
TP14
1
RTN
TP17
3
DSL34
hongjiacheng
D1, D9, D10
3
Red
Foshan NationStar Optoelectronics
D2, D3, D8
2
Yellow
Hubei KENTO Elec
D4, D5
2
Green
Hubei KENTO Elec
D6, D7
1
22uH
L1
2
10uF
Samsung Electro-Mechanics
C1, C6
4
100nF
Samsung Electro-Mechanics
C2, C7, C9, C11
2
220nF
FH(Guangdong Fenghua Advanced Tech)
C3, C4
1
100u
C5
2
470nF
Samsung Electro-Mechanics
C8, C10
1
47uF
C12
2
4.7kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R2
7
56Ω
UNI-ROYAL(Uniroyal Elec)
R3, R4, R5, R6, R7, R8, R9
1
15kΩ
UNI-ROYAL(Uniroyal Elec)
R10
4
8.2Ω
UNI-ROYAL(Uniroyal Elec)
R11, R12, R14, R15
2
1Ω
UNI-ROYAL(Uniroyal Elec)
R13, R16

MainPCB REV 3 design files

The KiCad project lives in the nolanconrad/SeniorDesignProject16 repository on GitHub; these links point at the commit this page was built from.

MainPCB REV 3: common questions

What microcontroller does the MainPCB REV 3 use?

The MainPCB REV 3 is built around the Arduino_Nano_ESP32, from the AVR/Arduino family.

How big is the MainPCB REV 3 PCB?

The MainPCB REV 3 measures 70.2 × 67.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MainPCB REV 3?

66 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the MainPCB REV 3 design files?

From the nolanconrad/SeniorDesignProject16 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MainPCB REV 3 design in my own project?

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

Can I test firmware for the MainPCB REV 3 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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