E07-m1101d Pinout !!better!!

Understanding its pinout is critical for correct integration, as incorrect wiring can damage the module or degrade RF performance.

While strictly not a "pin" in the header sense, the dedicated pad and its adjacent ground must be discussed. The E07-M1101D typically features a stamped hole or a small pad for soldering a helical spring antenna or a u.FL connector. This RF pin has a 50-ohm characteristic impedance. Connecting this incorrectly—using a long, untwisted wire or a sloppy solder joint—will destroy the module’s range and could even damage the internal power amplifier due to reflected power (high VSWR). The dedicated ground pin next to the antenna is not optional; it provides the RF return path and must be connected directly to the system’s ground plane. e07-m1101d pinout

_______________ | | | ANTENNA | | (1) | |_______________| | | | | | | | | | | 6 5 4 3 2 1 (Pin Numbers viewed from bottom) This RF pin has a 50-ohm characteristic impedance