HardLabs

OpenXstim

MonzurulAlam·OpenIstim·OpenXstim/OpenXstim.kicad_pcb

OpenXstim PCB layout, top view — open source AVR/Arduino board by MonzurulAlam

About the OpenXstim PCB

OpenXstim is an open source AVR/Arduino PCB design by MonzurulAlam, published on GitHub. It is a 2-layer board measuring 69 × 53.7 mm, with 55 components from 31 distinct parts.

Its main chip is the Arduino_UNO_R3, from the AVR/Arduino family. Other key parts include the OPA454, LT1054, AD5722AREZ, AZ1117EH-5.0TRG1 and MDOB128032. By type, the board carries 20 resistors, 16 capacitors, 8 ICs, 6 connectors, 2 switches and 1 module.

From the project

Open Source Transcutaneous Current Stimulator

OpenXstim, from the project README
From the project README

Main components on the OpenXstim

OPA454LT1054AD5722AREZAZ1117EH-5.0TRG1MDOB128032NMT0572SCArduino_UNO_R3

OpenXstim bill of materials (BOM)

55 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
OPA454
IC1, IC2
1
LT1054
U1
1
AD5722AREZ
U2
1
AZ1117EH-5.0TRG1
U3
1
MDOB128032
U5
2
NMT0572SC
U6, U8
1
Arduino_UNO_R3
A1
1
TEST_2
Test_2
J1
2
MJ-2506N
J2, J3
1
TEST_1
Test_1
J4
1
Ref
J5
1
Trigger
J6
1
Buzzer
BZ1
1
PEC12R-4025F-S0024
SW1
1
SW_SPDT
SW2
1
LED
D0
2
10UF
10uF
C1, C5
2
10UF
10uF
C2, C3
2
10UF
10uF
C4, C9
7
100N
100n
C6, C7, C10, C11, C12, C13, C14
Show 11 more
QtyPartRefs
1
22UF
22uF
C8
2
0.1UF
0.1uF
C15, C16
1
270R
R0
4
10K
R1, R3, R4, R19
1
100R
R2
2
ORNTA2502AT1
R5, R8
2
100K
R6, R7
4
1M
R9, R10, R11, R13
2
49R9
R12, R15
2
10R
R14, R16
2
1K
R17, R18

OpenXstim design files

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

OpenXstim: common questions

What microcontroller does the OpenXstim use?

The OpenXstim is built around the Arduino_UNO_R3, from the AVR/Arduino family.

How big is the OpenXstim PCB?

The OpenXstim measures 69 × 53.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OpenXstim?

55 components, from 31 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 OpenXstim design files?

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

Can I use the OpenXstim design in my own project?

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

Can I test firmware for the OpenXstim 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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