Category: Linux
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Fun with Djspot
Darren, G7LWT sent me a Djspot FM transceiver board for the Raspberry Pi to experiment with. The board is used to create an FM “hotspot” that provides access to other svxlink or EchoLink nodes via the Internet. You can use an HT to communicate through the hotspot on a simplex FM channel. DTMF codes control…
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svxTalkie
I’ve been toying with the idea of building a walkie talkie based on the svxLink software and Raspberry Pi Zero W platform. I found a really nice audio board that has two microphones, a headphone jack and speaker output that implements the I²S (Inter-IC Sound) digital audio interface standard. FWIW, it’s pronounced “eye squared S”.…
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Raspberry Pi Notes
Keyspan USB RS232 Adapter To use a Keyspan USA-19 USB to RS232 adapter, you need to install “firmware-linux-free”: e.g.: apt-get -y install firmware-linux-free Install seeed-voicecard seeed voice card source code and linux kernel drivers git clone https://github.com/HinTak/seeed-voicecard/ cd seeed-voicecard sudo ./install.sh sudo reboot Installing Google AIY Voice Kit on Raspios git clone https://github.com/google/aiyprojects-raspbian.git …