Features

ATtiny-13a microcontroller
IR LED
IR Receiver
2 LEDs (one green and one red)
Button
Badge PCB
3V Coin Cell

Description

The badge will work in a few different modes, these are tailored to the different age groups

Cubs: The badge will periodically...

Avatar

Mon, 09 Dec 2019
19
Matt, M5MAT

Avatar is a simple avatar generator. Styles and colours are derived from the MD5 hash of the 'name' provided. Two generators are included - 'robot' and 'face'.

Some examples are given below. The format for the url is

https://app.deadbeef.cafe/avatar/{style}/{name}

e.g. For an 8-Bit style face avatar of M0IZZ:

Deadbeef Cafe appserver DXClusterBridge setup. This is mostly for my own reference

Admin

Add a user

sudo mosquitto_passwd /etc/mosquitto/passwd <callsign>

Stop and start the broker (note that a restart doesn't seem to work)

sudo systemctl stop mosquitto

wait a bit...

sudo systemctl start mosquitto

Deadbeef Cafe App Server

Mon, 09 Dec 2019
19
Matt, M5MAT

Deadbeef Cafe appserver setup. This is mostly for my own reference

Inbound connections permitted on 80, 443 and 8080. 8080 goes directly to Tomcat, 80 & 443 are terminated by an nginx reverse proxy. This proxy redirects 80 to 443 and terminates SSL with a LetsEncrypt Cert (for app.deadbeef.cafe, other subdomains not implemented). LetsEncrypt cert is managed by certbot.

Services

The following services are running on the app...

2m/70cm Satellite Station

Fri, 26 Apr 2019
19
Matt, M5MAT

Satellite Reception using RTL-SDR, GQRX and GPredict

This is mostly sourced from http://teslaintheether.blogspot.com/2018/02/setting-up-gqrx-and-gpredict-for.html, all credit goes to Jacen Solo and it's only reproduced here in case the original disappears. All images come from his original blog post.