Review on Ableconn PI232DB9M Compact Expansion Raspberry by Brandon Hilton
It is the best solution to convert/invert serial/RS232 signals to TTL.
I am using this serial expansion board to get the Serial/RS232 signal from the ultrasonic sensor to the TX/RX pins on the Raspberry Pi which requires TTL instead of RS232. Works like clockwork. I simply placed two jumpers (from the ultrasonic sensor) on pins 2 and 5 of the DB9 connector on this board (see attached image) and connected the supplied jumpers to the Pi. No other changes were required. HIGHLY RECOMMENDED.
- Fingers crossed
- Negative impression
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