Guru
Joined: 05/10/2019
Location: United KingdomPosts: 6876
| Posted: 03:50pm 09 Oct 2024 |
I've been investigating the JDY-41. It looks very promising.
Sane physical size and pinout as the JDY-40.
Configuration is done differently, but it's not a problem. Instead of Hayes AT+ commands you send it configuration strings of hex bytes.
According to the manual (which is a little better than the JDY-40 one) it can do serial to parallel and vice versa, so you can send a string that will tell a remote device to operate a certain pin or operation of a pin will trigger a serial message at the other end. (not both at once - the whole parallel port is either input or output.)
You can also do one-to-many or address several remote modules individually on the same frequency.
I'm intending to order a few to play with.
Here's the manual:
jdy-41-manual-1.pdf