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# low_cost_potentiostat (PassStat)
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## Project description
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**A low cost potentiostat circuit to perform electrochemistry experiments** with still high performances. Several implementations are proposed. The system may be driven by a Teensy 3.2 or 3.6 card from PJRC (Arduino IDE) or by power supplies, generator and oscilloscope.
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A Python software is provide for PC, Macintosh or Linux operation, and an Android application for Bluetooth remote control. The noise resolution may be below 1 pA while the maximum scan rate may attain 8000 Vs-1.
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**Below is only a template.
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Please update using the [recommended setup and usage guide](https://www.ohwr.org/project/ohr-support/wikis/Administrator-guide#recommended-setup-usage)**
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![](/uploads/23a127884e2820d707e58c6119cde69d/spec_v1.1_top.JPG)
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*SPEC 1.1 first prototype**
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## Main Features
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- 4-lane PCIe (Gennum GN4124) *obsolete component, not available
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anymore*
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- 1x Xilinx Spartan6 FPGA (XC6SLX45T-3FGG484C) (PCI Device ID: 0x18D)
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- special versions with XC6SLX100T and XC6SLX150T available
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- FMC slot with low pin count (LPC) connector
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- Vadj fixed to 2.5V
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- FMC connectivity: all 34 differential pairs connected, 1 GTP
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transceiver with clock, 2 clock pairs, JTAG, I2C
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- No dedicated clock signals from Carrier to FMC (only available
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on HPC pins)
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- Stand-alone features
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- External 12V power supply connector
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- mini USB connector
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- 4 LEDs
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- 2 buttons
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- Power consumption: 5-12 Watt, depending on application
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- Optimised for cost
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- 6-layer PCB
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- Optional cooling [fan](Fan-Design) for the mezzanine.
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- Licenced under CERN OHL V2 W
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-----
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## Project information
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- Official production documentation:
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- [Users](Users)
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- [Software](Software)
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- [Frequently Asked Questions](FAQ)
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-----
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## Contacts
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### Commercial producers
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- not yet commercially available
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### General questions about project
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- [Emmanuel Maisonhaute](mailto:emmanuel.maisonhaute@upmc.fr) - Sorbonne Université, Paris
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-----
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## Status
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| Date | Event |
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| --------- | ------ |
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| 10-01-2021| Start working on project. Collecting main specifications.|
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-----
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30 September 2021 |
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\ No newline at end of file |