What purpose do you have in mind for the modules?
A couple of points to raise
Have you read the wiki about how this is done? The flash memory must be removed from the board and updated before re-soldering. Thats a pretty tricky job for most folks.
However that does not mean that the unit is useless. I have ordered a couple of dev boards from aliexpress to play around with this module. I will try and report back when I have had a chance to play. Strikes me that if you need wifi access to your printer there may be easier solutions than this one. All the control software that i have seen looks for a Com port. You would need to find a way to send the serial information via ip address.
The manual talks about the module having a transparent mode. This allows you to send serial data to the uart or rs232 interfaces. I have not yet worked out how that is done from the pc end other than it can use tcp/ip
A couple of points to raise
Quote
Someone swapped out the firmware
[forum.openwrt.org]
Have you read the wiki about how this is done? The flash memory must be removed from the board and updated before re-soldering. Thats a pretty tricky job for most folks.
However that does not mean that the unit is useless. I have ordered a couple of dev boards from aliexpress to play around with this module. I will try and report back when I have had a chance to play. Strikes me that if you need wifi access to your printer there may be easier solutions than this one. All the control software that i have seen looks for a Com port. You would need to find a way to send the serial information via ip address.
The manual talks about the module having a transparent mode. This allows you to send serial data to the uart or rs232 interfaces. I have not yet worked out how that is done from the pc end other than it can use tcp/ip