Scanning the bus we get the keyboard address, 0x08, and we can read every 300 milliseconds if a key is pressed.Īny computer needs a text editor.
Eigenmath manual driver#
The old keyboard driver initiated all the IO pins, so it also broke the i2c bus, it is necessary to delete this old driver. Both devices share the same bus, so the solution is to init the touchpad and copy the buss to use it. It is also a bit tricky, when we start the bus (Pin 21 and 22) the touchpad sends warning messages. The software is a bit difficult to read, but it communicates the key pressed using an i2c bus. It is a matrix button and it has a microcontroller to check if a button is pressed. And we only need to add a new driver to the keyboard. Micropython LVGL is compatible with Core2, the Eigenmath math engine is already compiled for esp32, so can our software runs in it? how many modifications are needed to get it working? Now we use a vectorial loop inside the Eigenmath engine to get all the points in one operation. And have developed a faster way to create function graphs. It shows all the executed operations, and the up/down keys navigate through the commands. In the software part, we have added history in the calculator. There is also brass pieces to screw the screws Two-mode magnet help to secure the box to any iron surface.Īnd we have added tape to protect the keys. We have added a couple of improvements, a pencil inside the box, with a wire that attaches it to a magnet, so it is fixed in the box. This one uses a 2 AA batteries box, so we decided to make a box in the shape of a trapezoid. We have developed a new box to the handheld. Project Logs New box and new software features This is the code for the firmware, it compiles Eygenmath as a module for mycropython. It is the micropython code for the calculator Here’s a list of the main cookies we use, and what we use them for:Įach web browser handles cookie management differently, please follow instructions for your chosen browser:
Eigenmath manual how to#
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Eigenmath manual full#
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