So the LTC3525 board turned up today and I've been doing some power testing. Running the basic board from a CR2032 battery doing only limited advertising (every ~5 seconds), the board consumes 28uA on average. If we run the battery through the LTC3525...
Living in a tropical country, rooms that are not air conditioned can get very hot. Considering this, the kitchen is a good place to start using domotics, since it does not have conditioned air. In this room, i want to manage two things : lights and temperature.Air...
I have decided that in lieu of developing a custom app - which is overkill - managing the devices will, at launch, consist only of going to specific URLs to trigger specific routines on the connected devices. For example: going to (URL) with a specific...
I encountered something that caused me trouble today. I set up the system for real world use, but each time i was sending a command to the arduino, i was having the relays turning of prior to everything.Here is a quick test code : #!/usr/bin/python from...
This project has not progressed for quite some time, so i decided to work a little bit on it. Planned features are still planned, but as i said in a previous post, i'm making the arduino base module independent. That way, if there is a Raspberry Pi connected,...
For anyone following along, the power domains are: constant 5V supplied via plugged-in AC cord (VDD on schematic) switched 5V to R Pi Zero W via load switch on PCB (V5P on schematic) switched B+ DC and filament AC via volume control switch contacts The...
With the hardware ready (as far I as knew) the next step was to start on the PIC MCU code that interfaces to the Raspberry Pi. In essence, there are really three tasks to be handled by the PIC: Pi Power controller - orderly power-down in particular!I2C...
Oh, yeah, one thing to mention - the SHUTDOWN state has a flaw! I'm not sure what to do here, actually. The flaw is that if the PIC negates the "I want you to keep running" signal to the Pi, it then waits for the Pi to negate the "I am running" signal....
Theory of Operation A document laminator is tuned to apply temperature and pressure suitable for sealing plastic pouches over paper and card stock. Heavier duty laminators can handle heavier pouches and heavier card and are capable of higher temperature...
Hello there, I'm thinking and rethinking the design of the board that will host all the ready-made pieces, and I'm facing a multitude of issues, related to power:How do I get both 5 and 3.3 V from the battery while charging it via USB?Can I selectively...
Hey there!Before reviewing the schematic I had a look at the datasheets of both the SSD1306 OLED controller and the W25Q80BV Flash ROM, and both have a sleep mode/power-down mode. Hoorray! This means that the current power configuration should work to...
Hey there,I just finished polishing the schematic, correcting passives packages and ordering all the parts that will connect the guts of the BitMasher. I got a major change to the project, that is I could not fit multiple 1-bit audio outputs as I originally...
As it turns out the monitor wont go back to its last state when it resumes getting power, I kind of figured on that.Pulling the button PCB I found this to my surprise!LED goes to an unpopulated LED, 3.3v when on, 0v when off... NOTED, that will be going...
Now with case!I've put the android phone into a small wooden case that I made on the laser cutter at RoboDino using the excellent tabbed box maker plugin for Inkscape Here's what's insideThe phone is running:TaskerAutoSqueeze (tasker plugin)SqueezePlayerHeadset...
Using what I believe was an old camera equipment case, for the case. Big Red Button is going to be Start, Yellow buttons are for Up and Down arrows and Green Button for OK. LCD is 7" mounted it in a 5x7 picture frame, I was having trouble making a bezel...