361–370 of 1001 posts
* Security camera with motion detection, which uploads clips to my personal Google Drive. * Always-on, ssh-authenticated gateway to my LAN. I used it while traveling to tunnel through and remotely control my desktop computer which had some credentials I didn't have with me.
I have it set up to run a project where a subreddit has control over the watering of a live plant in my apartment. The pi runs a reddit bot that reads the votes, and can switch on a pump to water. It also collects data about sunlight, moisture, temp and humidity to help inform the decision about watering. Despite many people's preconceptions about the goodness of the internet, I must admit that they do a wonderful jo…
1. Pi3: media server (minidlna), nfs & samba for backup to usb drive, Pi-Hole, weather station with BME280 sensor and gnuplot for graphing
2. Pi2: wifi bridge for my tv box
And two (Pi2 & Pi3) waiting for some use.
Doorlocks of our hackerspace has been RPi controlled almost since the original RPi came out, maybe 2013. Nowadays we got 4 doors on 3 RPIs (internal and external), with over 200 members that has access. Using MQTT to communicate with our membersystem since 2016 or so.
Please think about failure modes, and don't take these guys as an example: https://news.ycombinator.com/item?id=10302686
I have several * Pie-hole and runs Nagios to collect information about things going on inside the network. * One running a PiDP-11 (pdp 11/70 emulator) as well as providing MOP service to boot my DEC terminal multiplexor (it provides the boot image when the mux comes up) * One is a stratum-1 time server using an Adafruit GPS module with PPS output. This because I got tired of both the reflection attacks and trying to…
You might be able to run 4k display with an old RPi at about 8-10 Hz.
- Network controller (using CUPS) for a very old laser printer that only has USB.
- Various hobby electronics projects like controlling an Arduino robot via photo and ultrasonic sensors and wifi, developing networking software for ESP8266, and various other simple electronics experiments.
I run one as an appliance hooked up to my document scanner which places the documents on Google Drive: https://github.com/stapelberg/scan2drive
I run two more for automatically testing new releases of https://gokrazy.org/
All of this is implemented in Go on top of https://gokrazy.org/, without any Linux distribution in the mix :).
I'm using one as part of a midi controller project: http://jsnow.bootlegether.net/jik/keyboard.html The controller has 156 pressure sensitive keys. The raspberry Pi runs a program that reads from a bank of 20 8-channel ADCs all wired up to a SPI bus (it runs at 2mhz, and I'm able to get about 90 samples per second), and then generates MIDI commands that are sent over a USB-MIDI adapter. I could use a microcontroller…
I'm working on something vaguely related, a grid-based synth-controller/sequencer with a bunch of i2c shift registers and laser cut hardware. I've been thinking about building a pressure-sensitive hex-layout keyboard next, you've given me a bunch of ideas and inspiration.