# Micro:bit 收信强度测试

- Link: https://www.ixiqin.com/2019/03/04/micro-bit-receiving-strength-test/
- Published: 2019-03-04T15:04:05+08:00
- Author: 白宦成

本代码用于测试不同信号强度下的发信距离。

![](https://postimg.aliavv.com/201810/7c3v6.jpg)

    ```javascript
    radio.onReceivedNumber(function (receivedNumber) {
        basic.showNumber(radio.receivedPacket(RadioPacketProperty.SignalStrength))
    })
    input.onButtonPressed(Button.A, function () {
        basic.showString("A")
    })
    input.onButtonPressed(Button.B, function () {
        basic.showString("B")
    })
    basic.showIcon(IconNames.Yes)
    Code language: JavaScript (javascript)
    ```