https://lowj.github.io/ Recent content on Jonathan Hugo -- gohugo.io en-us You Mon, 22 May 2023 16:56:54 +0000 https://lowj.github.io/posts/wireless_uart/ Mon, 22 May 2023 16:56:54 +0000 https://lowj.github.io/posts/wireless_uart/ A guide to get wirless using UART communication using 2 HM-10 BLE modules. Initially I tried going the HC-05 route to get wireless UART communication on my projects, however I always ran into connection/powering issues with the HC-05. Recently I got the HM-10 bluetooth modules, which have worked much better for me. However one downside, compared to the HC-05, is that you will need 2 HM-10 modules and a Serial to USB cable in order to get wireless UART working. https://lowj.github.io/posts/tp_kb/ Wed, 22 Mar 2023 16:56:54 +0000 https://lowj.github.io/posts/tp_kb/ tp-keyboard ! The goal of this project is to make a useable desktop keyboard from the keyboard of the ThinkPad L420 laptop and making the trackpoint functional. I originally started this project back in early 2020 where I spent alot of time decoding the Keyboard matrix and figuring out the pinout of the trackpoint module. I created a breakout board to easily access the pins of the keyboards FFC cable which made it easier to work with while decoding the matrix. https://lowj.github.io/posts/lightbar/ Sun, 22 May 2022 16:56:54 +0000 https://lowj.github.io/posts/lightbar/ After 7 years my Early 2015 Macbook’s battery was barely working and on its last legs. After getting a new battery from iFixit I opened my MacBook and replaced it. I booted it up and noticed there was a bunch of smudges / damage on the screen. I realized that some of the alcohol I used during the installation process sept through the keyboard and got onto the screen and caused damage. https://lowj.github.io/posts/cuda/ Fri, 22 Apr 2022 16:56:54 +0000 https://lowj.github.io/posts/cuda/ [TODO] https://lowj.github.io/posts/lanedetect/ Tue, 22 Feb 2022 16:56:54 +0000 https://lowj.github.io/posts/lanedetect/ [WIP] Lane Detection with OpenCV [Intro] [Try list] Get Lane Image -> Preprocessing -> Canny Edge Detection -> Hough Line Detection -> Find Lane Lines -> Calculate Steering angle. Preprocessing The goal of the preprocessing step is to prepare the image for the rest of the steps. Change to Grayscale [why] Gaussian Blur to and remove noise, the lane lines will stand out but any noise that was there will get blurred away. https://lowj.github.io/posts/quefrency/ Wed, 22 Sep 2021 16:56:54 +0000 https://lowj.github.io/posts/quefrency/ The Quefrency low pro case is a case for the quefrency v1 keyboard. It is designed to be low profile and have a 5 degree typing angle. The USB cut out is designed to be used with generic magnetic microusb cables. Using magnetic cables reduces the chance of breaking the micro usb port on the pro micro. [TODO: Add pictures] CAD + stls https://lowj.github.io/posts/micromouse/ Tue, 22 Jun 2021 16:56:54 +0000 https://lowj.github.io/posts/micromouse/ [TODO] https://github.com/micromouseuci/micromouse-kit https://lowj.github.io/posts/lazy-boardv2/ Sat, 22 May 2021 16:56:54 +0000 https://lowj.github.io/posts/lazy-boardv2/ Macropad featuring 12 hotswappable switches, a RGB OLED screen, and RGB for each key. Firmware written by my friend William Hardware: MCU - Teensy 4.0 RGB OLED - SPI WS2812B RGB LEDs The board uses a daughter board to attach the RGB LEDs. Buttons and DIP switches in the back allow for USER profiles to be programmed in. Case: 3D printed PLA case. Consists of the main case to mount the PCB, plate to mount switches, and a shield for the screen.