An HM-11 Bluetooth LE module (TI CC2541), 13.5 by 18.6 mm on a 0.8 mm board, with its 16 contacts as castellated half-holes down the two long edges and the printed antenna across the top. The outline and pads follow the HM-11 footprint in arc12's Bluetooth-Modules-Eagle; the chip, crystal and passives on top stand where modules of this kind put them, not where one was measured.

Made by

Generic

Kind

Circuit board (PCB)

Licence

CC-BY-4.0

Keywords

hm-11, bluetooth, ble, cc2541, module, castellated, wireless, uart, serial