Three Meshtastic nodes are active in Cape Town for off-grid communications during disasters or just to meet your neighbours image Myself and two other ham radio operators have established 3 Meshtastic nodes that will operate 24/7 to help build out more connectivity across Cape Town. We are using license-free 868 MHz radios, so anyone can buy these cheap (ish) devices and get connected. The more nodes we have, the better the connectivity gets across the whole city. These radios will keep messaging going regardless of whether there is Internet or not. So if we hit Stage 8+ load shedding and cell towers and Internet starts to go down, this messaging network will still work. This means that citizens can message for assistance needed, and this can be relayed to City or Provincial Disaster Risk Management. Or in cases of loss of communications during a disaster we can also send out messages to everyone on the network as to where water tankers will be deployed etc. Apart from the public channel (which is much like CB radio's Channel 19) anyone can also create their own private channels (with passwords) to stay in contact with groups of friends or family. The connections between all radio nodes are encrypted with AES256 encryption, so private messages will stay private even though they bounce across 3 or more other radio nodes to reach the recipient. You have a phone, so all that is needed is the free Meshtastic app, and a Meshtastic compatible radio device. This is probably bad timing, as right now there is a global shortage of Meshtastic radio devices. The massive global uptake has also made this situation even worse. But the point of preparing for disasters, is to do that well before a disaster strikes. I've documented a lot of my lessons learnt, as well as given some context to the situation in South Africa for this service at the linked web page below. See #technology #Meshtastic #offgrid #CapeTown #SouthAfrica

Replies (27)

My daughter is currently in South Africa and sadly it sounds like the infrastructure is getting worse. Your project seems like a great initiative. It would be even better if the government would get its shit together.
Alan Siefert's avatar
Alan Siefert 1 year ago
I wonder if these could be attached to drones for sending to good but hard to reach relay locations.
Yes I've actually seen an image if a drone with one if these strapped on. They are light weight to lift and give good coverage with some altitude.
Yes it's not getting better yet. A recent storm knocked all comms for some Karoo towns for over 10 days. I publishing a non-tech video about this later today.
#Meshtastic #LoRA #Radiowave 📡📻🛰️ #Bitcoin can be transmitted over either radio or satellite (#blockstream📡services) when/where internet doesn't work / outage / blocked (nor newbies) #[1] #[0] Danie great resource in Capetown
I'm down, but the US is so large, and people like us so few, that it would be really hard unless a large number of people experienced enough motivation to do this. It would most likely be one guy setting these up for his family in smallish towns in the US. Still cool though.
The problem is what you'd actually get for only $5. It may be so stripped down that a lot of functionality is not there. As it is the basic Heltech has no GPS or screen.
It does also have to be as non-technical as possible for most ordinary users. Something like a T-Echo that you buy and just connect to and use. We're trying to get ham radio operators involved now to set up some home locations that stay on 24/7 as many are discouraged when they power up and find no nodes visible anywhere.
Yes you should - it is so much more than just talking today. The digital modes and satellite are really interesting to explore. The best for me tho has been gaining all the knowledge about how radio frequencies and modes really work - so much today from Bluetooth, to phones, to Wi-Fi, to remotes, etc are all using radio.
Thanks for sharing- this project caught my eye and I have been wanting to tinker around with it