15 Aug

Robustness of a Frequency-Diverse Network When One Frequency is Unusable

Bhavik Joshi

One thing that I wanted to do this week was to validate the effect of including frequency diversity in the network that we made for our robots. So, I programmed one ESP32 feather board with a 433 MHz packet radio on its stack to send out a lot of garbage values over the 433 MHz band extremely quickl...

03 Aug

433 MHz Packet Radio Stacks: an easy to use frequency-diverse mesh network

Bhavik Joshi

This week, our team of summer undergrads began planning the integration of all of our projects together into one big integrated demo. So, I had to start making my networking code and hardware easy to add into and use in my peers’ projects. To do so, I switched from using the small 433 MHz packet rad...

27 Jul

Latency Differences Between Wifi and 433 MHz Packet Radios in my Diverse Mesh Network

Bhavik Joshi

Last week, the two biggest things that we accomplished were making one node in the mesh network into an MQTT bridge, which would connect to an MQTT broker to be able to use the dash with the mesh network, as well as set up the RFM69HCW 433 MHz packet radios into a unicast mesh network. So, using t...

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