hartytp/ionpak-thermostat
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update errata

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Sebastien Bourdeauducq 2018-02-13 18:26:13 +08:00
parent cf2e3c251e
commit 9a1d839e19
2 changed files with 3 additions and 1 deletions
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README.md
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@ -3,7 +3,7 @@ ionpak
A modern, low-cost universal controller for hot-cathode ionization vacuum gauges.
![Test setup](https://raw.githubusercontent.com/m-labs/ionpak/master/pictures/full_ionpak_front_resized.jpg)
![ionpak picture](https://raw.githubusercontent.com/m-labs/ionpak/master/pictures/full_ionpak_front_resized.jpg)
Why?
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2
hardware/errata.md
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@ -44,3 +44,5 @@ Rev 1
* add plated-through holes and pads for mounting rods of BNC connector
* simplify FBI circuit, 2 ranges only (typ. 8mA and 45mA), remove diodes and neglect MOSFET leakage
* to support different case designs, replace the holes on the connectors side with slots. One of the case designs requires holes whose center is at 11.5mm from the board edge.
* review choice of external LED connector type and clearance
* if using a non-polarized connector, change pinout so that connecting the LEDs the wrong way cannot cause damage