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.
REXQualis Comprehensive Starter Kit with Arduino MEGA 2560 & Detailed Tutorial for Arduino IDE Compatibility
11 Review
🎁 Ultimate BBC Micro bit Sensor Starter Kit: Keyestudio 37-in-1 Box with Tutorial, Compatible with V1.5 & V2, Gift for Kids and Adults (Microbit Board Not Included)
11 Review
LAFVIN Super Starter Kit for Arduino R3 Mega2560 Mega328 Nano with Detailed Tutorial - Compatible with Arduino IDE
11 Review
Gikfun Screw Shield Expansion Board: Enhance Arduino UNO R3 with the EK7007 Add-On
11 Review
Comprehensive 500pcs Laptop Screw Kit Set for 🔩 IBM HP Dell Lenovo Samsung Sony Toshiba Gateway Acer
12 Review
🔧 Premium Repair Replacement Screws & Tools for MacBook Pro Retina 15"/13" - Complete Bottom Case Set
10 Review
MacBook Retina 13-inch (A1425, A1502) and 🔩 15-inch (A1398) Bottom Case Screw Set with Pentalobe Screwdriver
11 Review
M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review