Help with E22-900T30S

Development Hardware
1

hello everyone, this is my first time posting a topic and i have a question about this spesific chip in hand. A while ago im using this chip

Haa4082aa700b40c98fa1271b0521703bU
Haa4082aa700b40c98fa1271b0521703bU800×800 101 KB

(Ebyte E22-900T30S) for my home garage alarm system.
i stumbled upon this nanovhf diy meshtastic project on github

The question is that possible that im using this E22-900T30S variant chip (which using serial not spi protocol) for the diy meshtastic project??

i got the rest of the component (like esp32 from espressif and another generic one) on my inventory but after looking around here and internet, it seems like there is no one ever complete this with E22-900T30S spesifically. there are some question about this but never really answer the question.

any answer will be appreciated thanks

2

least that i can get in my country right now is this chip E220-900M22S which after reading some spesification there are slight difference that i dont understand

sg-11134201-23030-imudvcqqj7nv3e
sg-11134201-23030-imudvcqqj7nv3e700×700 92.2 KB

any idea is that possible?? is that straight forward or something??

3

The serial protocol modules will not work. You need the SPI modules.
The E220 has the caveat that it can’t use a couple of the slowest modem presets of meshtastic. Shouldn’t be a problem if you’re DIYing, you’ll be familiar with reading datasheets.

4

uhhmmm so I conclude that e220 would work, but some setting on Lora Menu(which is slowest modem presets) wont work(because of difference in Air data rate between e22 & e220 ??). Thanks for your answer looking forward to this DIYing soon, as the i got the module in hand just now

5

did you manage to make it work? What did you do to achieve it?