- I have been using Raspberry Pis for a long time now. Used many of the commercially available cases. RPis can be run headless (without a display) or an HDMI/SPI display can be used.
- There are many cases that are available for the 5" displays, etc.
- But it would definitely be nice to have small display with maybe an LED and touch support. Say like the commonly available 16x2 char displays and a WS2812B led and a button.
- This led me to search for a similar thing on the Internet and finally to a ThingSurf.
- Found this: Design on Printables webiste for a Raspberry PI 4 with display. The Design is by user guytas on printables and already had all the things I needed.
- This was locally printed on a Creality Ender.
- The 16x2 display fit nicely. But as there was a need for an RGB did some "jugaad" and fitted an RGB Led below the button hole and a couple of capacitive sense buttons below the casing.
- Wrote a small program to showcase all of the features.
- The program shows the temperature of the Pi with yellow blinking and on button press moves over to blue and date and with another press to green with time.
- It can be used for any kind of visual aid by means of the Display or the LED.
- Need to check how it performs on long term use.
Leg Brake on a Bicycle Growing up, there was a need to learn how to drive a geared motor cycle and also get a driver's license. There are two categories of two wheeler licenses: one for geared vehicles usually with leg brakes and one for auto/non-geared vehicles where the braking happens by hand and are simpler to operate. Driving license had already been acquired for the non-geared vehicle but due to lack of availability of a geared vehicle for practice, the acquiring of this license was taking quite some time. The main problem was adapting to braking a vehicle using the leg where one to respond differently and the conditioning takes some time. Unfortunately could not manage to get anybody/s vehicle for learning after many attempts. And at that time (1995 or so) bicycles were rather common and used for transport. So an idea was: why not add such a feature to a bicycle. A Hercules Town and Trek was also available. After some visits to the local bicycle shop and a used vehicle part...
Comments
Post a Comment