2pcs Mini RS232 to TTL MAX3232 Convert Adapter Board Transceiver Breakout Board 3v-5v

Used this on an Esp32 project to monitor a solar controller via modbus rs232. Need to solder the connectors on or wires directly to the board. They do not come soldered on. Works great. Will buy again if I need to make another one

Ich weiß nicht, was los war, aber die haben bei mir nicht funktioniert.Zumindest habe ich aus einer RS232 Quelle keine TTL Signal bekommen.Vielleicht lag es an mir, aber ich musste die zurückschicken.

Bought this for a project needing RS232 control with an RPi. The Treedix board is tiny and with soldered-on leads it is small enough to easily tuck inside a regular RPi case, just add a tiny strip of electrical tape to cover the back-end of the leads. I added a 3 pin terminal block to the case for the external plug and ran the RS232 leads to that and mapped the Logic leads to GPIO. Much better than the giant DB9 interface most adapter boards come with. I am buying an extra set just to keep in the project parts drawer.