https://tilde.club/~kitzman/tags/embedded/ Recent content in embedded on kitzman's place Hugo -- gohugo.io en-us Mon, 08 Jan 2024 00:00:00 +0000 https://tilde.club/~kitzman/posts/2024-01-08_embedded_on_p9/ Mon, 08 Jan 2024 00:00:00 +0000 https://tilde.club/~kitzman/posts/2024-01-08_embedded_on_p9/ People look for the right tooling, libraries, and support when considering an operating system. I’ve been using 9front for a while, and wanted to do some embedded programming on it too. There’s no gcc, so SDKs won’t work directly, no tool to flash chips with - most people would use something else. But don’t give up! Plan9 was used throughout the history for distributed computing, creating operating systems, and high-performance computing. https://tilde.club/~kitzman/posts/2022-05-03_lcd_on_an_sbc_1/ Tue, 03 May 2022 00:00:00 +0000 https://tilde.club/~kitzman/posts/2022-05-03_lcd_on_an_sbc_1/ Intro When one looks up how to add a display to an SBC (such as a Raspberry PI), most of the examples/tutorials just say to use this or that kernel module, or library. Since I’m a DIY person, I refused this approach when it came to this parallel I/O I randomly got my hands on. This can shed some light, more on how easy it is to bootstrap a cross platform embedded program, than how to read documentation/a datasheet. https://tilde.club/~kitzman/posts/2022-02-09_watchtower_clock/ Wed, 09 Feb 2022 00:00:00 +0000 https://tilde.club/~kitzman/posts/2022-02-09_watchtower_clock/ Intro I can’t count how many times a regular alarm failed to wake me up. But I know what would work - a strobe and a dissonant sound. Powerful lights help the brain, especially during winter, to reset its circadian rhythm. When my sleep is shifted by 6-12h, -if- I manage to wake up, I use light to try to get myself back on track. Notice the big -if-. How about I create my own clock? https://tilde.club/~kitzman/posts/2022-02-06_for_iot_1/ Sun, 06 Feb 2022 00:00:00 +0000 https://tilde.club/~kitzman/posts/2022-02-06_for_iot_1/ Introduction So… My previous attempt to use pmOS was not so successful… … probably due to lack of vendor libraries which would require the native Android libc, lack of set properties, and daemons I’d have to compile in order to use, let’s say, the GSM network. So I decided to give Android a try, as a general-purpose IoT operating system ^^. Last time I saw it in the wild, for the same usage, was for ODroid. https://tilde.club/~kitzman/posts/2021-09-26_postmarketos_mingling/ Sun, 26 Sep 2021 00:00:00 +0000 https://tilde.club/~kitzman/posts/2021-09-26_postmarketos_mingling/ I have this old HTC lying around and I’m currently playing around with it. Setting it up Obviously the first step is installing a bootloader after unlocking. The second step is building and installing pmOS itself, and the ‘pmbootstrap’ tool does a great job at automating the process. The partition table is slightly different than Android systems. pmOS creates a single partition, which in itself contains a partition table. This will have the same format as any Linux partition table.