Before you begin building this device, figure out what you're going to use it for. What voltages should it output? What current level? What will the variation be in the load you are driving? Is this going to be a general lab power supply, or are you...
Not hardware, but essential with any temperature/humidity sensors, easier to have it here than to find some earlier sketch with DP calculation. Dew point resembles absolute humidity pretty well, air pressure does affect it but causes only like +/- 0.5°...
Besides a special build of PowerStrip (for Windows) available upon request only,some rare EDID-writing code is still archived online but never made it into mainline due to the serious risk of picking the wrong EEPROM:If you wipe the one on a DVIADD card,...
I'm going to be using two USB sticks for the install process: the first is the pfSense installer and the second is the boot drive onto which pfSense will be installed. But before that, you'll need to decompress the image you downloaded. The following...
Let’s get to it! Install Arduino IDE, the esp32 board and the Fixed Libraries. To install the ESP32 board in your Arduino IDE, follow these next instructions: 1) Open the preferences window from the Arduino IDE. Go to File> Preferences 2) Enter https://dl.espressif.com/dl/package_esp32_index.json into...
I used micropython, because I haven't used it for a project yet and I was shocked how well it worked for this. There are many tutorials on how to use Thonny with an ESP32, and I found it to be much quicker than doing this in Arduino/ C++. The main files...
Step 3: Connect to VivaPlanetThis next step is a bit more complex and requires some C# and visual studio with the Gagetter software from GHI Installed. This will take some time...persist it will be worth it in the end...There are a lot of great tutorials...
MSP430G2231 Code:For a starting point I used this excellent project from Stefan Wendler. MSP430G2231 Software UART. The code below replaces main.c from his “timer-a-uart” branch.#include #include #include "uart.h" #define BUTTON BIT3 //...
Yate(Yet Another Telephony Engine):Answering Google Voice calls that are forwarded to Google chat is tricky if you don't want to use the Gmail chat application. I found the most functional results were achieved by using Yate, to create an SIP server...
Linphonec and Linphonecsh:This is the softphone I used to interact with the python program. It is a little particular to get working so here are some directions. First run linphonec once to create a .linphonerc configuration file in your home folder....
Now is a good time to cut your EL panel down to size. Lay the LCD on top of it and trace around it with a marker. I chose to have the leads going out the right side (facing the front of the screen). You can cut the EL panel with scissors. You might want...
Now we need to get the metal plate off of the screen. This is the most dangerous part of the project. Get some rubbing acohol and pour it into the holes in the back of the plate. This will help dissolve the adhesive holding it to the screen. I let the...
Now is a good time to test your LCD and make sure it still works. Load the batteries back into the back half of the case. Press the motherboard against the back half of the case so the battery connectors make contact. Use a screwdriver or some other...
Assemble your LCD sandwich with the EL panel on the back, then the polarizer, then the glass. You can use some scotch tape around the edge to hold everything in place. I used some putty to stick the whole thing to the PCB, but you could also use some...
Find a good place to mount the push button that will control the backlight. I chose to put mine on the left side of the calculator, as you can see in the pictures. This was a very tight fit though. Some other suggestions would be on the top or under...