Arduino SMPS PSU - Project updates - Page 1
Forum section: electronics / projects

author: THORs_Hand
author_rank: Contributor
timestamp: September 10, 2017, 09:41:52 am
content: Hello!As some of you may know i have an arduino controlled SMPS project happening, this topic is to post updates about it and get advices from you all.First of all, why i have chosen an arduino to make all the work?Because there are tons of people that don't really know to create the perfect SMPS for their needs, and many others that don't have the money, time or avability to purchase special IC's to do all the work. This project is in mind to keep it simple, requiring common components (like tranzistors, passive components, OpAmps etc.)I'm a beginner myself, especially in programming so i discover a lot for myself, but that doesn't mean i can't do itI know that it won't be the best SMPS of all, the arduino just can't handle all of this work very fast, but it can do it in a basic level.The components that i will use are the following: Arduino UNO, Daisy-24 LCD module (wich is based on ST7032 LCD I2C controller and PCF8574 I2C expander) and parts from a computer PSU (Tranzistors, inductors etc.), in the future i might add some other things. everything will be posted hereFirst step is to make the code to control most stuff that don't require everything built.I began to set up the LCD using the ST7032 library, discoverd that after a ton of google-ing, it works, contrast control works, everything about the LCD works like a charmNow i try to read the PCF8574 as it has 4 push buttons attached to it, as it will be used later to control the PSU, i still didn't manage to read it's input using PCF8574 and/or the Wire library. i'll come back with updates later. if anyone has any advice please write it here in the comments.After i finish everything, i'll post the code and the schematic for it.

author: Ian.M
author_rank: Super Contributor
timestamp: September 10, 2017, 01:34:24 pm
content: Please link your related topics here so we dont have to chase around figuring out what you already have tried etc. Also in each new topic about the same project please link back to this one in the first post.To start you off:Arduino - powered lab bench switch mode buck-boost power supplyIf you want to maintain your own list of topics, edit them into your first post and I'll delete this one.

author: THORs_Hand
author_rank: Contributor
timestamp: September 10, 2017, 01:46:00 pm
content: Thank you for advicei'll just delete any previous posts and continuie with this topic

author: Ian.M
author_rank: Super Contributor
timestamp: September 10, 2017, 01:54:31 pm
content: DO NOT DELETE PREVIOUS POSTS. That maximally pisses off anyone who previously helped you and guarantees a bad reputation for you. Light editing to remove something you wish you hadn't said is acceptable if no one has yet called you out on it, as is deleting a post you just made because you had second thoughts before anyone has replied.

author: THORs_Hand
author_rank: Contributor
timestamp: September 10, 2017, 03:52:30 pm
content: OkayI understoond, i'll try to respect the rules of this forum as much as possibile

author: Ian.M
author_rank: Super Contributor
timestamp: September 10, 2017, 04:12:57 pm
content: Its not an official rule, its just basic forum etiquette.Reason: Some idiots have a childish "I'll take my ball and go home" reaction to not getting overwhelmingly positive support for their ideas and comments, and on forums that permit easy post editing and/or deletion typically try to delete everything they've posted when they leave the forum. This leaves topics they've participated in full of holes, like swiss cheese, because its also good forum etiquette not to quote more than the bare minimum to make it clear what questions or ideas you are replying to, damaging the usefulness of those topics to future readers.As the admins on most forums will mass delete all the posts of the worst trolls, doing so yourself also makes you look like a failed troll!Of course if you've slipped up and posted personal information you prefer not to make public, removing it ASAP is only common sense. Hopefully you'll delete it before Google indexes it! If someone else has quoted your sensitive personal info, I would recommend messaging them and asking them to edit it out. If they don't cooperate, contact a moderator by 'Report to moderator' and request the moderator edits it out.