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Forum Index : Microcontroller and PC projects : Webmite and ADC
| Author | Message | ||||
| Gerad Regular Member  Joined: 10/01/2024 Location: GermanyPosts: 49 |
Hello everyone Does anyone have experience with Webmite and ADS 1115 (ADC) I need a 16bit I2C controller for EC measurements. Who can help. Thank you Gerard |
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Dinosaur Guru  Joined: 12/08/2011 Location: AustraliaPosts: 338 |
Hi Gerard I wrote a 4 channel reader for the ADS 1115, BUT it is in FreeBASIC and runs on a Rpi Zero W 2. It is used as a LiPO4 Battery management system in my camper. Don't know if it will help you. Can post snippets if you are interested. Regards Regards Hervey Bay Qld. |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3359 |
Please do. PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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Chopperp Guru Joined: 03/01/2018 Location: AustraliaPosts: 1096 |
ADS1115 12V 4 cell meter.zip Hi SiliconChip Mag had an aricle on using the 1115 chip in Nov '23, but you may have to pay to see it Here On page 27 of this months SC there is an actual article using the 1115's with a Micromite packpack here. You should be able to download the software for free from there shop. This may help I've been looking at them myself as they can measure over 5V I/P which would be good for the LM335 temperature sensors which I have a number of. Edit File added Brian Edited 2024-12-08 08:52 by Chopperp ChopperP |
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| Gerad Regular Member Joined: 10/01/2024 Location: GermanyPosts: 49 |
it would be great if you could send me some snippets regards gerard |
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| Dinosaur Guru Joined: 12/08/2011 Location: AustraliaPosts: 338 |
Hi All zip file with critical routines and plenty of comments. ads1115.zip Regards Regards Hervey Bay Qld. |
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| JanVolk Senior Member  Joined: 28/01/2023 Location: NetherlandsPosts: 237 |
Gerad I copied some notes about I2C from my own manual from a number of years ago of the version PicoMite V5.07.07 Unfortunately, they are in Dutch and without source citation, but are intended to help you progress with your project using the examples. The WebMite and I2C and ADC are different things and not tested with the WebMite firmware and the latest versions. Greetings, Jan. I2C examples.pdf |
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| Gerad Regular Member Joined: 10/01/2024 Location: GermanyPosts: 49 |
Hello Jan your I2C examples are exactly what I was looking for. It is a great help. Thank you very much Best Regards Gerard |
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| Dinosaur Guru Joined: 12/08/2011 Location: AustraliaPosts: 338 |
Hi All No, problem. Just a word of warning on the reliability of the signals that you measure. The noise level of the signal is affected by you using the keyboard, or plugging a monitor in on a headless system. Put a few pF on the signal line next to the ADS1115 and use a power supply capable of 3 to 5A. I spent a lot of time tracking them down and in the end opted to filter out rogue readings. You may find it in the Core Electronics Forum. If you load the .csv into excel or libre-calc you can show the readings as graphs. Regards Hervey Bay Qld. |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5058 |
Dinosaur, Thanks for the code. JanVolk, Prachtig document. Heb hem toegevoegd aan mijn 'bibliotheek'. Schrijf je voor een blad ? Volhout PicomiteVGA PETSCII ROBOTS |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10246 |
FWIW my favourite ADC is the MCP3424. Full code MMBasic available on TBS if you search for "MCP3424". 12, 14, 16,or 18-bit 4-channel capability with programmable gain amplifier and internal reference. With 18-bit conversions it is possible to directly read thermocouples with no external circuitry |
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| Dinosaur Guru Joined: 12/08/2011 Location: AustraliaPosts: 338 |
Hi all @Volhout Although I can read and understand Hollands perfectly (if spoken slowly), I haven't uttered a word in 50 years. So I won't embarrass myself by attempting that here. Thank you for your kind comments, writing service manuals for my machines has been good practice. But as I tell my English wife, she learned her English on the street, I was taught from the ground up. (and of-course watching the Untouchables  )@matherp It has been a few years since building the battery controller and I don't recall why I chose the ADS1115, but it's PS sensitivity was a disappointment. I have written ASM interfaces to a few A2D converters starting at a segment driver 7135 to AD7701 and AD7702. None of them exhibited that intolerance, although I admit to using linear PS for those. Regards Hervey Bay Qld. |
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| JanVolk Senior Member Joined: 28/01/2023 Location: NetherlandsPosts: 237 |
Harm, I don't write for a magazine but as a reference work to understand it all better. My English is not very good so Google translate is my friend. It started with translating parts from a PDF and adding things later. I do this with OpenOffice and Calibri font for the text and Consolas for the programs and play with the colors and table formatting. Coloring can be done with simple search and replace for the entire text. When translating, the program is sometimes also translated, which makes it instructive to put the commands and functions correctly again. That is also the reason why I have already made several comments about list commands and list functions and I have also included and colored these lists in my own manual. For example, the PicoMite V5.07.07 manual has 363 pages for me. Greetings, Jan. |
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