HardLabs

MyDewControllerPro

danb35·myDewControllerPro-PCB

MyDewControllerPro PCB layout, top view — open source AVR/Arduino board by danb35

About the MyDewControllerPro PCB

MyDewControllerPro is an open source AVR/Arduino PCB design by danb35, published on GitHub. It is a 2-layer board measuring 100 × 80 mm, with 55 components from 36 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the LM7808_TO220. By type, the board carries 22 connectors, 20 resistors, 5 diodes, 4 transistors, 2 capacitors and 1 IC.

From the project

KiCad schematic and board for myDewControllerPro: https://sourceforge.net/projects/arduinonanodewcontrollerpro/

Unfortunately, the Gerbers there have a few issues, most notably that the footprint for the reverse-polarity protection diode (D1 on the schematic) just doesn't fit the specified diode. The specified "fix" for the problem is to file down the leads of the diode until they fit through the holes. And while this should be a trivial thing to fix, editable source files for the schematic and board haven't been released.

MyDewControllerPro, from the project README
From the project README

Main components on the MyDewControllerPro

LM7808_TO220Arduino_Nano_v3.x

MyDewControllerPro bill of materials (BOM)

55 components, 36 distinct parts.

QtyPartRefs
1
LM7808_TO220
U1
1
Arduino_Nano_v3.x
A1
4
FQP30N06L
Q1, Q2, Q3, Q4
1
FAN_OUT
J1
1
PB1
J2
1
PB2
J3
1
DISPLAY
J4
1
RGB_LED
J5
1
HTU21D
J6
1
TEMP_INT
J7
1
BT
J8
1
TEMP_1
J9
1
TEMP_2
J10
1
TEMP_3
J11
1
PWR_IN
J12
1
DHT11
J14
1
PWR_SW
J15
1
PWR_LED
J16
1
CH1_LED
J17
1
CH2_LED
J18
Show 16 more
QtyPartRefs
1
CH1_OUT
J19
1
CH2_OUT
J20
1
CH3_OUT
J21
1
CH3_LED
J22
1
FAN_LED
J30
4
1N5822
D1, D3, D4, D5
1
10A10
D2
1
0.33uF
C1
1
0.1uF
C2
6
10k
R1, R10, R12, R15, R16, R17
4
330R
R2, R9, R11, R14
3
1k2
R3, R4, R5
1
1M
R6
4
4k7
R7, R8, R13, R20
1
1k
R18
1
2k2
R19

MyDewControllerPro design files

The KiCad project lives in the danb35/myDewControllerPro-PCB repository on GitHub; these links point at the commit this page was built from.

MyDewControllerPro: common questions

What microcontroller does the MyDewControllerPro use?

The MyDewControllerPro is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the MyDewControllerPro PCB?

The MyDewControllerPro measures 100 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MyDewControllerPro?

55 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the MyDewControllerPro design files?

From the danb35/myDewControllerPro-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MyDewControllerPro design in my own project?

The repository has no license, so all rights stay with danb35. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the MyDewControllerPro 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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