Low tech email sms message in a bottle comms for all

On hindsight these ideas are primative and should have been done 50 years ago compared to modern telecoms but if there is nothing better there may still be room for these ideas. 

As I said in previous posts a single raspberry pi can host 1000 email accounts provided the ulimit command is used to limit each accounts resources so people will prune their email and a 128gb flash drive is used costing 20 euro on amazon or even less on alibaba.com provided you pay import taxes later. 

10 short emails and sms messages can be sent to a single sms email relay server in a single udp packet

Leave comments if you have expertise and wish to cooperate on this endeavour.




This contains gps coordinates of origin, timestamp, sms and email messages, md5sum, certs of authentication. A vic 20 could do a forth interpreter in 3k, 64k udp packet is plenty.

SDRs software defined radio are useful for transmitting data in homebrew ways other than wifi or the telcoms network. See gunradio for more info, remember to stay legal.




These messages will be sent 5 times at random times on the raspberrypi radio transmitter and picked up by sdr or ham radio receivers. A central national server will determine whether these messages were received based on keeping track of gps coordinates and md5sums. A zerotier.com national network for each country will deal with low bandwidth comms. I suspect before comms infrastructure gets popular on Mars updated Cb technology will be popular. The message in a bottle messages could be transmitted on CB's via a simple interface. Although the fcc won't be on Mars for a whilew allowing more freedom on radio frequencies used. As an aside gps coordinates should have the stellar body name added to them so they work in the whole multiverse. 

To send an email back to the tribal chief on his raspberry pi from a doro phone or similar primative device a sms to email bridge will be used caller id will go into the message so the chief will know who its from. These would be simple to write for a person with astrisk or frees witch experience. 

This document contains info on internet comms in Sub Saharan Africa which will prevent us from reinventing wheels, this document is dated 2013 however. 

A brilliant idea passed on to me by a reddit reader is carrier pigeon internet a pigeon could easily deliver 1000000 emails in the outbox with a 128gb micro sd card costing 20 euro and connect to google yahoo and hotmail pop servers to download new email for the return journey to the back of beyonds.


Contact me at barrow_dj@yahoo.com if interested 

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