
Easypace v3
loslab/easypace
Biphasic pulse generator for electrical stimulation of tissues

Biphasic pulse generator for electrical stimulation of tissues
Connectorboard is an open-source printed circuit board by loslab, from the loslab/easypace repository on GitHub, published under the BSD-3-Clause licence. It is a 2-layer board of 91.4 × 17.8 mm with 11 parts on 10 nets, routed with 18 tracks and 0 vias.
Its parts include 5 connectors and 4 resistors.
Open source biphasic pulse generator for electrical stimulation of tissues developed by Oliver Schneider at the µOrganoLab & Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB)
https://github.com/loslab/easypace
Easypace was originally built for pacing cardiac tissues in microfluidic Organ-on-Chip systems, however it can be certainly used for other purposes. It generates adjustable biphasic pulses with frequencies of ~ 0.1-10 Hz, amplitudes of up to ~ 12.5 V and pulsewidths of ~ 1 - 200 ms. Generally it can also be just an idea/ starting point for your own improved pacer :rocket:.

Check out the wiki for assembly & usage instructions
I'm not a trained electrial engineer, so don't expect a professional build. I tinkered around with Easypace during my phd studies to build a cheap, scaleable system for pacing multiple tissues in cardiac Organ-on-Chip systems which I could adjust to my needs and control remotely. We are happy about any feedback on Easypace. Just tell us if you have any improvement ideas and open a pull request or get in touch via ghilorevilo@posteo.de.
Please cite Easypace if it helps you in your research.
This project is licensed under a BSD 3-Clause license. See the LICENSE file for details.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4 |
| 4 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_2x01_P2.54mm_Vertical | J1, J2, J4, J5 |
| 2 | MountingHole_3.2mm_M3_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | , |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
It measures 91.4 × 17.8 mm and has 2 copper layers, 1.6 mm thick.
11 parts. 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.
From the loslab/easypace repository on GitHub, at the commit this page was made from: the board is pcb/Connectorboard/Connectorboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the BSD-3-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

loslab/easypace
Biphasic pulse generator for electrical stimulation of tissues

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