M5Stack U113 射频接收器 RF 无线射频接收器，使用 SYN531R 射频接收器

Frequency: 433.92 MHz

Dimensions: 48 mm x 24 mm x 8 mm

Interface Type: GPIO

Supply Voltage - Max: 5 V

Supply Voltage - Min: 5 V

Operating Supply Voltage: 5 V