（可远程）ESP8266读DHT11温湿度，APP inventor制作app实时显示

bemfa

bh3sfk 发表于 2020-4-3 14:37
我换地方就得重新下载该WiFi名和密码对吧

对的，群里有个微信配网版本的，可以用微信配网使用

mr7

验证时提示下面if这个错误：
error: expected unqualified-id before 'if'

if(millis() - preHeartTick >= upDataTime){//上传数据

^

exit status 1
expected unqualified-id before 'if'

mr7

有请楼主发完整源码，谢谢。

mr7

有请楼主发整段源码参考一下，谢谢。

guoweian

努力学习中，谢谢分享。

魏子豪

Breeze_1 发表于 2019-11-28 23:26
为什么会出现错误：'D4' was not declared in this scope

int PINDHT11 = D4;
SimpleDHT11 dht11(pinDHT11);

魏子豪

Arduino:1.8.13 (Windows 10), 开发板："Generic ESP8285 Module, 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), ck, 26 MHz, 1M (no SPIFFS), 2, v2 Lower Memory, Disabled, None, Only Sketch, 115200"                      sketch_feb01a:12:14: error: 'D4' was not declared in this scope   int PINDHT = D4;                ^  sketch_feb01a:21:19: error: 'D4' was not declared in this scope   int SimpleDHT11 = D4;                     ^  sketch_feb01a:22:1: error: 'SimpleDHT11' does not name a type   SimpleDHT11 dht11(PINDHT);   ^  C:\Users\Administrator\Desktop\sketch_feb01a\sketch_feb01a.ino: In function 'void loop()':  sketch_feb01a:37:14: error: 'dht11' was not declared in this scope     if ((err = dht11.read(&temperature, &humidity, NULL)) != SimpleDHTErrSuccess) {                ^  exit status 1  'D4' was not declared in this scope    在文件 -> 首选项开启 “编译过程中显示详细输出”选项 这份报告会包含更多信息。