Tag "uart"

Hacking the TTI Indoor Gateway

Four years ago The Things Network (TTN) kind of revolutionized the IoT world with their effort to reduce hardware and software costs to implement a commons LoRaWAN network. Their bet was backed on Kickstarter by almost a thousand people with almost 300k€ to help create a low-cost LRaWan gateway (and a platform and end devices too). The gateway took it’s time to become a reality (kickstarter-effect) but by the time it was released the project had already impacted other players in the industry and low cost DIY gateways were a reality....

9600bps clock source

Quick post from an old draft, mainly as documentation. A 9600Hz oscillator circuit based on a 2.4576MHz crystal and a 74HC590 binary counter. The idea was to reproduce the set up from robotroom.com site with a bar crystal but I had some trouble making it work. The solution came from this document about crystal oscillator circuits that describes different circuits depending on the crystal frequency. Here you have the schema and a picture of the circuit:...