40-pin round hole IC DIP socket — 2.54mm pitch, machined contacts, through-hole RT809 widely used for firmware storage

widely used for firmware storage in embedded systems

Low power consumption modes

and filters small biopotential signals even in noisy conditions caused by motion or remote electrode placement

It uses a SnO2 sensing element with a built-in heater that operates in two alternating cycles — high temperature for CO detection and low temperature for combustible gas detection

GPIO: 32 programmable I/O lines (Ports A

40-pin round hole IC DIP socket — 2.54mm pitch, machined contacts, through-hole RT809 widely used for firmware storageThe 40 pin round hole IC DIP socket is a precision machined contact socket designed for reliable, low insertion force mounting of 40 pin DIP (Dual In line Package) integrated circuits on PCBs. Unlike standard stamped contact sockets, the round (machined) contacts grip the IC pins with a circular contact surface, providing superior electrical contact, lower contact resistance, and significantly reduced risk of pin damage during insertion and removal.