HardLabs

PTDriver

wallaceowen·PTDriver

PTDriver PCB layout, top view — open source AVR/Arduino board by wallaceowen

About the PTDriver PCB

PTDriver is an open source AVR/Arduino PCB design by wallaceowen, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 50 mm, with 61 components from 26 distinct parts.

Its main chip is the ATmega328P, from the AVR/Arduino family. Other key parts include the AP1117-33, MCP4725, MAX31865 and MCP602. By type, the board carries 23 resistors, 19 capacitors, 10 connectors, 8 ICs and 1 crystal.

It belongs with the sensors designs in this gallery.

From the project

Signal conditioning PT100 sensors for use with standard thermistor inputs on 3D printer control boards

PTDriver, from the project README
From the project README

Main components on the PTDriver

ATmega328PAP1117-33MCP4725MAX31865MCP602

PTDriver bill of materials (BOM)

61 components, 26 distinct parts.

QtyPartRefs
1
ATmega328P
U1
1
AP1117-33
U2
2
MCP4725
U3, U7
2
MAX31865
U4, U6
2
MCP602
U5, U8
1
8MHz
Y1
1
Power
J1
2
Vout
J2, J9
1
serial port
J3
2
3-wire PT100 probe
J4, J8
1
Conn_01x02
J5
1
Conn_02x03_Odd_Even
J6
1
display
J7
1
Heaters
J10
11
0.1uF
C1, C6, C7, C8, C9, C10, C14, C16 +3
2
10uF 12V
C2, C3
2
22pF
C4, C5
3
0.1uF
C11, C12, C13
1
330nF
C15
12
10K
R1, R5, R6, R7, R8, R9, R10, R11 +4
Show 6 more
QtyPartRefs
2
3.9K
R2, R3
2
402K 0.1%
R4, R19
2
5k
R13, R23
2
100
R14, R22
2
100k
R15, R16
1
50k
R17

PTDriver design files

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

PTDriver: common questions

What microcontroller does the PTDriver use?

The PTDriver is built around the ATmega328P, from the AVR/Arduino family.

How big is the PTDriver PCB?

The PTDriver measures 100 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PTDriver?

61 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the PTDriver design files?

From the wallaceowen/PTDriver repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the PTDriver design in my own project?

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

Can I test firmware for the PTDriver 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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