4×3 Matrix Membrane Switch Keypad Arduino FTDI 232 Mini USB to TTL Converter this is a direct replacement

this is a direct replacement iron specifically designed for Soldron 938 soldering stations

3V - 5V DC Output Type Digital (High/Low TTL) Detection Range 2 cm - 30 cm (adjustable via potentiometer) Detection Angle ~35 degrees effective cone IR Wavelength ~940 nm (near-infrared) Output Current >= 15 mA (can drive small loads directly) Operating Current ~20 mA typical Onboard Indicators Power LED (Red) + Signal LED (Green) Sensitivity Adjustment Onboard multi-turn potentiometer Interface Pins VCC

Produces authentic multi-tone siren sounds ideal for security systems

Industrial Solutions

```cpp // 100 RPM BO Motor - Basic Speed & Direction Control

4×3 Matrix Membrane Switch Keypad Arduino FTDI 232 Mini USB to TTL Converter this is a direct replacement4x3 Matrix Membrane Switch Keypad Arduino Quality electronics from The Engineer Store, Bengaluru. Fast shipping, 7 day warranty on manufacturing defects, expert support. Product Overview The 4x3 Matrix Membrane Switch Keypad is an essential input device for Arduino and microcontroller projects. This 12 button keypad features a reliable membrane switch design, making it ideal for creating custom control interfaces, security systems, calculators, and