HardLabs

Smu subfront 1

jaromir-sukuba·J-SMU·pcb/pcb_kicad/smu_subfront_D1/smu_subfront_1.kicad_pcb

Smu subfront 1 PCB layout, top view — open source PIC board by jaromir-sukuba

About the Smu subfront 1 PCB

Smu subfront 1 is an open source PIC PCB design by jaromir-sukuba, published on GitHub. It is a 2-layer board measuring 137 × 62 mm, with 56 components from 30 distinct parts.

Its main chip is the PIC24FJxxGA006, from the PIC family. Other key parts include the L7808, TPS5420D, 25LCxxx and MC9S08GB60A. By type, the board carries 15 capacitors, 13 resistors, 11 diodes, 8 connectors, 5 ICs and 2 transistors.

From the project

DIY source-measure unit

Parameters: + Voltage ranges 12V and 120V (bipolar) + Current ranges 1uA, 10uA, 100uA, 1mA, 10mA, 100mA (bipolar) + Minimal set voltage step - 1mV + Minimal set current step - 100pA + Voltage resolution - 100uV + Current resolution - 1pA

JSMU is designed to work as standalone device, but can be connected to computer via USB, and controlled via simple commands in SCPI form, similar to Keithley 2xxx series SMUs.

Smu subfront 1, from the project README
From the project README

Main components on the Smu subfront 1

L7808TPS5420DPIC24FJxxGA00625LCxxxMC9S08GB60A

Smu subfront 1 bill of materials (BOM)

56 components, 30 distinct parts.

QtyPartRefs
1
L7808
U1
1
TPS5420D
U2
1
PIC24FJxxGA006
U3
1
25LCxxx
U4
1
MC9S08GB60A
U5
2
BC817
Q1, Q2
1
Crystal
Y1
2
Conn_01x05_Male
J1, J5
1
Conn_01x04_Male
J2
1
Conn_01x02_Male
J3
1
Conn_02x08_Odd_Even
J4
2
Conn_01x02_Male
J6, J7
1
Conn_01x05_Male
J8
5
SM4007
D1, D2, D3, D4, D6
2
D_Zener
D5, D8
1
B340
D7
3
LED
D9, D10, D11
1
L
L1
2
10u
C1, C11
1
CP
C2
Show 10 more
QtyPartRefs
6
100n
C3, C4, C5, C10, C14, C15
2
47u
C6, C8
2
10n
C7, C9
2
22p
C12, C13
4
2k2
R1, R2, R5, R6
3
10k
R3, R7, R10
1
5k6
R4
1
1M
R8
1
1k
R9
3
510R
R11, R12, R13

Smu subfront 1 design files

The KiCad project lives in the jaromir-sukuba/J-SMU repository on GitHub; these links point at the commit this page was built from.

Smu subfront 1: common questions

What microcontroller does the Smu subfront 1 use?

The Smu subfront 1 is built around the PIC24FJxxGA006, from the PIC family.

How big is the Smu subfront 1 PCB?

The Smu subfront 1 measures 137 × 62 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Smu subfront 1?

56 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the Smu subfront 1 design files?

From the jaromir-sukuba/J-SMU repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Smu subfront 1 design in my own project?

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

Can I test firmware for the Smu subfront 1 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug PIC firmware against it before you order a PCB.

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