2 layers25.2 × 27.3 mm

Cf2-hcsr04
dbrgn/crazyflie2-hcsr04
Ultrasonic sensor (HC-SR04) extension board for the Crazyflie 2.0
9 parts2
Boards in 1 GitHub repository, designed in KiCad, that use the REG71050DRV by Texas Instruments (-40℃~+85℃ 100uA 1MHz 2.7V~5.5V 5V 60mA Buck-Boost Not supported WSON-6-EP(2x2) Charge Pumps ROHS). See how each wires it, with its parts, size, README and files; the REG71050DRV’s symbol, footprint and pinout are on its own page.

dbrgn/crazyflie2-hcsr04
Ultrasonic sensor (HC-SR04) extension board for the Crazyflie 2.0