HardLabs

OpenExoStim

MonzurulAlam·OpenIstim·OpenIStim/KiCAD files/OpenExoStim.kicad_pcb

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

About the OpenExoStim PCB

OpenExoStim 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 49 components from 35 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 AD8278. By type, the board carries 15 resistors, 14 capacitors, 9 ICs, 4 connectors, 4 diodes and 2 switches.

From the project

Open Source Transcutaneous Current Stimulator

OpenExoStim, from the project README
From the project README

Main components on the OpenExoStim

OPA454LT1054AD5722AREZAZ1117EH-5.0TRG1AD8278MDOB128032NMT0572SCTL072Arduino_UNO_R3

OpenExoStim bill of materials (BOM)

49 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
OPA454
IC1
1
LT1054
ICL7660
U1
1
AD5722AREZ
MCP4822
U2
1
AZ1117EH-5.0TRG1
U3
1
AD8278
U4
1
MDOB128032
U5
2
NMT0572SC
U6, U8
1
TL072
U7
1
Arduino_UNO_R3
A1
1
TEST_2
+Jumber
J1
1
MJ-2506N
-Jumber
J2
1
MJ-2506N
OUTPUT
J3
1
TEST_1
Test
J4
1
PEC12R-4025F-S0024
RotaryEncoder_Switch
SW1
1
SW_SPDT
SW2
2
LED
D0, D1
2
1N4148
D2, D3
2
10UF
1uF
C1, C5
2
10UF
10uF
C2, C3
1
10UF
100n
C4
Show 15 more
QtyPartRefs
6
100N
100n
C6, C7, C11, C12, C13, C14
1
22UF
47uF
C8
1
10UF
33uF
C9
1
100N
33uF
C10
1
270R
R0
3
10K
R1, R3, R4
1
100R
270R
R2
1
ORNTA2502AT1
ORNTA1003AT1
R5
1
100K
20K
R6
1
100K
10K
R7
1
ORNTA2502AT1
20K
R8
2
1M
R9, R10
2
20K
R11, R13
1
49R9
20R
R12
1
10R
R14

OpenExoStim design files

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

OpenExoStim: common questions

What microcontroller does the OpenExoStim use?

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

How big is the OpenExoStim PCB?

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

How many components are on the OpenExoStim?

49 components, from 35 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 OpenExoStim 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 OpenExoStim 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 OpenExoStim 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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