HardLabs

UECG rev4

ultimaterobotics·uECG_v4_3_all·pcb/uECG_rev4.kicad_pcb

UECG rev4 PCB layout, top view — open source Nordic nRF board by ultimaterobotics

About the UECG rev4 PCB

UECG rev4 is an open source Nordic nRF PCB design by ultimaterobotics, published on GitHub under the MIT license. It is a 2-layer board measuring 63 × 22 mm, with 68 components from 40 distinct parts.

Its main chip is the nRF52832-QFxx, from the Nordic nRF family. Other key parts include the BMI160, AD8606ARZ, SIP32509DT-T1-GE3, MCP3911(QFN) and VOS617B-7T. By type, the board carries 21 capacitors, 20 resistors, 9 ICs, 6 connectors, 4 diodes and 2 switches.

It belongs with the iot & wireless and wearables designs in this gallery.

From the project

uECG - very small wearable ECG device that sends raw and processed data over BLE

This is an old repository - new version is located here: https://github.com/ultimaterobotics/uECG (and is divided into multiple repositories for relevant parts of the project, links are in description)

Project is in active development stage, at the current moment we have shared: schematics and PCB design ECG monitor program based on Node.js, cross-platform ECG monitor program for Linux (outdated: might not work properly, please use cross-platform version instead) Firmware for the main unit, rather stable and reliable build. Next planned major update will cover better beat detection and more…

Main components on the UECG rev4

BMI160AD8606ARZSIP32509DT-T1-GE3nRF52832-QFxxMCP3911(QFN)VOS617B-7TMCP73831-2-OTMCP1703A-3302_SOT23

UECG rev4 bill of materials (BOM)

68 components, 40 distinct parts.

QtyPartRefs
1
BMI160
IC1
1
AD8606ARZ
IC2
1
SIP32509DT-T1-GE3
IC3
1
nRF52832-QFxx
U1
1
MCP3911(QFN)
U2
1
VOS617B-7T
U3
1
MCP73831-2-OT
U4
2
MCP1703A-3302_SOT23
U5, U6
1
Crystal_GND24
Y1
1
USB_B_Micro
J2
2
Conn_01x01_Male
J3, J5
2
Conn_01x01_Male
J4, J6
1
SWD_CONN
SC1
2
Conn_01x01_Male
E+1, E-1
1
Fuse_Small
F1
1
GND_CONN
GC1
1
SW_Push
SW1
1
SW_SPDT
SW2
2
LED
D1, D4
1
LED_ARGB(a3)
D2
Show 20 more
QtyPartRefs
1
BAV99
D3
1
3.9nH
L1
7
100n
C1, C4, C7, C8, C14, C16, C20
6
1 uF
C2, C17, C18, C19, C21, C22
1
100p
C3
1
10 uF
C6
1
N.C.
C9
1
0.8 pF
C10
1
10 nF
C11
2
12p
C12, C13
1
100n (NP0)
C15
1
10
R1
1
510k
R2
3
200k
R3, R15, R19
3
100k
R4, R9, R20
5
2k
R5, R7, R10, R16, R17
1
22k
R6
1
10k
R8
4
10М
R11, R12, R13, R14
1
6.8k
R18

UECG rev4 design files

The KiCad project lives in the ultimaterobotics/uECG_v4_3_all repository on GitHub; these links point at the commit this page was built from.

UECG rev4: common questions

What microcontroller does the UECG rev4 use?

The UECG rev4 is built around the nRF52832-QFxx, from the Nordic nRF family.

How big is the UECG rev4 PCB?

The UECG rev4 measures 63 × 22 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the UECG rev4?

68 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the UECG rev4 design files?

From the ultimaterobotics/uECG_v4_3_all repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the UECG rev4 design in my own project?

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

Can I test firmware for the UECG rev4 without the hardware?

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

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