tigerzhang / 3g-l306-test Goto Github PK
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3G L306 circuit test
根据之前的测试结果:
1、GPS + 电机 + 3G发送 + 蜂鸣器 不会马上断线,但是过段时间会断,时间不固定,大部分时候在定位失败时关GPS时
2、GPS + 电机 + 3G发送 马上断线
3、GPS + 3G发送 + 蜂鸣器 马上断线
4、GPS+ 3G发送 马上断线
5、电机 + 蜂鸣器 + gps GPS定位成功或失败,发送和关闭GPS是 会挂
6、GPS + 蜂鸣器 概率出现 过一会断线的现象
7、只开gps 有概率马上断线,有概率在前一次没关就再次打开时时间掉线
如果不开GPS则没有问题
WCDMA 模块掉线,跟 GPS 模块开关是否有关系。
如果怀疑服务器应答有问题:
避免代码 BUG 带来的干扰,直接用最裸的代码来测试
MCU 只写 3G 连接代码,蓝牙只写控制 GPS 的代码。先保证 3G 模块建立了 TCP 连接,通过蓝牙模块打开 GPS,观察 3G 是否会掉线
BLE 连续给 MCU 发多包请求,MCU 没有正确处理粘包
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