Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A _MAKE_COMP The RS-485 port can be

The RS-485 port can be accessed through the DB9 port or the solder points on the PCB

Eliminates contact deformation from improper crimping

The inches/mm key instantly converts from Imperial to Metric (or vice versa)

Matrices like these are 'multiplexed' - so to control all the seven-segment LEDs you need 14 pins

The protocol used is very very timing-specific and can only be controlled by microcontrollers with highly repeatable 100nS timing precision

Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A _MAKE_COMP The RS-485 port can beThe Peltier Cooling Assembly comes ready to use with a pre mounted thermoelectric cooler, heatsink, and fan, providing rapid cooling for electronics experiments, temperature control projects, and other applications that need a compact cold plate. This is for people who just want to get cold fast. The 12V Peltier module is mounted onto a 12V heatsink and fan assembly with thermal paste and an aluminium clamp. Simply connect to 12V 5A+ power supply and