I printed this little star for the tree my daughter got in her advent calendar. I didn’t expected to be be capable to print such a small part. But since I oiled my printer, printing has been really enhanced.
When I received my two NodeMCU boards, I rapidly tried to update the firmware … and broke the firmware of one of the board. So here is the correct way to flash a firmware on a NodeMCU board which allowed me to save it.
I recently got an old computer screen out of my garage. It is now just perfect to monitor the extruder temperature and print progress from OctoPrint.
My last project uses a Digispark (ATtiny85) as an USB keyboard to send the lock screen shortcut (Ctrl-Alt-L) when a single button is pressed. To bring some fun, I bundled the whole in an emergency stop push button.
Arduino IDE is great, however, some times I enjoy a simple C program and a simple Makefile. Here is a simple application skeleton allowing to blink a LED of course.
ADB stands for Android Debug Bridge and is a required for almost any hack on the phone. I noted here all the steps necessary to get it working on Ubuntu 14.10.
I had some hard time installing the BlackBerry Java SDK for (old) OS 7.1 (for Windows or Mac only) on Linux. Here are the main information necessary to setup a working environment in Eclipse (Kepler).
Yesterday I was building and awesome princess plane in Duplo. However I was missing one 2×1 brick to finish the perfect model. Awesome, I 3D printed it.
I challenged a friend to connect a micro-controller to a Raspberry Pi. I chose to use an ATMega168 programmed in C while he preferred to use a Microchip PIC programmed in ASM. Not that I don’t like ASM, but it took me only 45 minutes to get all the material together and blink some LEDs from a shell. To get thinks up very fast, I used a BugOne board. This is clearly an advantage for me since it is already assembled with an ISP connector and ready to use.
For a future more ambitious project, I tried to connect an LCD screen to a Raspberry Pi. My first guess was to connect the LCD directly to the Raspberry Pi GPIOs. Continue reading “Raspberry Pi LCD (HD44780) control”