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by jmn98
Tue Jan 22, 2019 1:47 am
Forum: Troubleshooting
Topic: GPIO pull up/down resistors
Replies: 2
Views: 136

GPIO pull up/down resistors

Hi all, I'm using my R-Pi to control two 3x8 demultiplexers to switch 16 reed relays carrying high voltage supply, the aim of the instrument will be to survey for groundwater. I'm at the initial stages now and new to R-Pi's. The circut: - 3 x GPIO outputs address each demultiplexer, I have these att...
by jmn98
Thu Dec 13, 2018 3:53 am
Forum: Other projects
Topic: High voltage device with R-Pi brain
Replies: 0
Views: 123

High voltage device with R-Pi brain

Hi all, I'm relatively new with R-Pis and have a few questions about a device I'm trying to make: it's a device for surveying groundwater and I'm aiming to make it and test it so it will be freely available to communities in developing countries. The aim: - Input high voltage (24, 300 and 600 Vpeak ...
by jmn98
Thu Dec 13, 2018 2:52 am
Forum: Automation, sensing and robotics
Topic: ADC sample rate (ADS1115)
Replies: 3
Views: 835

ADC sample rate (ADS1115)

Hi all, I recently picked up an ADC, the adafruit ADS1115 module - https://www.adafruit.com/product/1085 I have tried installing a few different python libraries from github with mixed success. I have only been able to record data at 10-15 ms/sample but I want to be able to boost the sample rate to ...

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