2 layers100 × 93 mm
Speeduino base
Tjeerdie/SPECTRE
Speeduino compatible engine control unit (ECU) based around black STM32F407VET6 board.
213 parts59GPL-3.0
2 layers47 × 14 mm
Muscle BioAmp Patchy
upsidedownlabs/Muscle-BioAmp-Patchy16Small EMG patch for precise ElectroMyoGraphy recording!
- Size
- 47 × 14 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 15
- Pads
- 71
- Tracks, vias
- 202, 37
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 17 Feb 2023
- Updated
- 22 Jul 2023
Overview
Muscle BioAmp Patchy is an open-source printed circuit board by upsidedownlabs, from the upsidedownlabs/Muscle-BioAmp-Patchy repository on GitHub. It is a 2-layer board of 47 × 14 mm with 42 parts on 15 nets, routed with 202 tracks and 37 vias.
It is built around the BAT54S and AO3401A. Its parts include 9 capacitors, 9 resistors, 3 diodes, 3 connectors and 1 IC.
Main components
2README
README.mdMuscle BioAmp Patchy
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Muscle BioAmp Patchy is a wearable ElectroMyoGraphy or EMG sensor that snaps directly to gel electrodes and connects to your muscle like a patch. It comes with reverse polarity projection, power indicator, onboard snap connectors, and Upside Down Labs' powerful BioAmp sensing technology for precise muscle signal recording. This enables you to easily integrate this sensor in your EMG-based Human-Computer Interface (HCI).
Hardware
Muscle BioAmp Patchy has been created using KiCad and all the design files can be found under hardware folder, including Interactive BOM file. Images below shows a quick overview of the hardware design.
| PCB front | PCB back |
|---|---|
 |  |
License
Hardware
CERN Open Hardware License Version 2 - Strongly Reciprocal (CERN-OHL-S-2.0).
Software
MIT open source license.
Documentation:
This work is licensed under a Creative Commons Attribution 4.0 International License.
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C6, C8, C9 |
| 4 | WireHole | MountingHole:MountingHole_2.1mm | H1, H2, H3, H4 |
| 3 | 2.2uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4, C7 |
| 3 | 220K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5, R8 |
| 3 | 22K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R9 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 2 | 1nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C5 |
| 2 | BAT54S | Package_TO_SOT_SMD:SOT-23 | D2, D3 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Amp | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U1 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | G*** | kibuzzard-6414BA98 | kibuzzard-6414BA98 |
| 1 | G*** | kibuzzard-6414C03E | kibuzzard-6414C03E |
| 1 | G*** | kibuzzard-6414BFB3 | kibuzzard-6414BFB3 |
| 1 | G*** | kibuzzard-6414C013 | kibuzzard-6414C013 |
| 1 | G*** | kibuzzard-641592EB | kibuzzard-641592EB |
| 1 | G*** | kibuzzard-6414C01C | kibuzzard-6414C01C |
| 1 | G*** | kibuzzard-6414C025 | kibuzzard-6414C025 |
| 1 | G*** | kibuzzard-6415932C | kibuzzard-6415932C |
| 1 | G*** | kibuzzard-6414BA76 | kibuzzard-6414BA76 |
| 1 | G*** | kibuzzard-64159573 | kibuzzard-64159573 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | LOGO | UpsideDownLabs:muscle47 | G*** |
| 1 | LOGO | UpsideDownLabs:UDL-LOGO-47 | G*** |
| 1 | snapIN+ | UpsideDownLabs:snap-12mm | J3 |
| 1 | snapIN- | UpsideDownLabs:snap-12mm | J2 |
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Questions
How big is the Muscle BioAmp Patchy PCB?
It measures 47 × 14 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Muscle BioAmp Patchy use?
42 parts, built around the BAT54S and AO3401A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Muscle BioAmp Patchy KiCad files?
From the upsidedownlabs/Muscle-BioAmp-Patchy repository on GitHub, at the commit this page was made from: the board is hardware/Muscle-BioAmp-Patchy.kicad_pcb and its schematic hardware/Muscle-BioAmp-Patchy.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Muscle BioAmp Patchy design in my own project?
Its repository states no licence, so its author keeps all rights: ask upsidedownlabs before reusing the design.