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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
/ K9 I/ z+ [' D n- #include <ESP8266HTTPClient.h>3 A) o8 a* a0 _2 Z! \2 s
- #include <ESP8266WiFi.h>% z9 P' B# a9 r! l8 E
- #include <ESP8266WiFiMulti.h>4 n! {( |% u% L! E. ]
- #include <ESP8266WebServer.h>& v& m0 _1 k! |4 S M( m! Z
- #include <arduino.h>
: D: V7 @" |' E u: ~ - ESP8266WiFiMulti WiFiMulti;
/ `1 h" P6 Y1 s4 K) t0 }8 ~ - ESP8266WebServer server(80);
' V4 t4 {# R6 W* T - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 y, D( [7 R4 S1 ]1 ]) T3 I - ADC_MODE(ADC_VCC);
' K7 L+ h& h5 l0 O; x - void setup() {
8 j" r, [3 j; v - Serial.begin(115200);
, ~ @! a& y, l; Q! G - Serial.print("\r\n\n");$ a: ~( I) ^; u' Z" U, ~
- pinMode(2,OUTPUT);7 x! X/ Q! v- n1 ?1 P8 r
- // WIFI
% ~* [5 }" z2 d0 \# G - WiFi.mode(WIFI_STA);
5 Z/ i* }& ^! `5 Y8 V* s0 p - WiFi.hostname("Sparkle");
, i) K& S, N5 @ - WiFiMulti.addAP("wifi ssid", "wifi password");2 b3 O! E/ d# E- `/ Y
- int tryNum = 15;
. @! B5 f7 [1 m6 L. J7 Y - Serial.print("Connect WiFi");7 M- {' [- _" {! F
- while (WiFiMulti.run() != WL_CONNECTED) {9 J% b0 ?' M+ P9 W5 H( A3 H* H1 x
- digitalWrite(2,0);
# h% H! l! n1 J - delay(200);
+ |* ]1 G% }% H& c7 w" W3 h - digitalWrite(2,1);
% c4 o9 r9 p' ]7 G! @$ @2 p - delay(300);
( o9 I/ u5 P O( R5 B1 ?" o+ Q - Serial.print(".");
# l# O$ h: S) B# b) O' F - tryNum--;
, D# \3 R9 G* w0 S7 t - if (tryNum == 0) {
, ^7 H+ x+ m0 d8 f6 b! [8 _/ G - // 1min
/ G8 d: f! E; i4 z$ t. Z: ?5 u - // ESP.deepSleep(60e6);6 _1 p; `% v0 v3 w% I# P
- ESP.deepSleep(0);) p( p& q) S- l3 \3 U, t
- }
( r8 y+ a! P; o' G$ F - }
3 `7 h" b9 Z5 N; g' O. T - Serial.print("\r\n");& |4 R) D+ C; L) X- q- R& `9 v- }
- digitalWrite(2,1);
( t6 j9 `3 I5 l* ]$ y - Serial.print("IP address : ");' ~, {7 p. o" _2 D6 l& |3 N
- Serial.println(WiFi.localIP());' E2 _" h4 o! m" m+ h
- server.on("/", HTTP_GET, [](){: b: g* m) }8 f8 W0 [# {
- server.sendHeader("Connection", "close");; L& ~* Q/ c- \) ]
- server.send(200, "text/html", serverIndex);8 o# T2 h" D6 y! c$ J
- });7 r, \% j1 w( A2 t0 V2 C
- server.on("/update", HTTP_POST, [](){
5 j5 y6 c% |& }! V1 I' K - server.sendHeader("Connection", "close");
8 c8 D! m' Z2 \& R3 S - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* I: n: \( ~1 b/ B r" c - ESP.restart();
# p/ h7 i0 K6 ~* ? - },[](){, o- u4 V7 }. G1 t" C
- HTTPUpload& upload = server.upload();+ n- {. L8 M. w
- if(upload.status == UPLOAD_FILE_START){0 a/ B- o4 k# q) L5 V* Q
- Serial.setDebugOutput(true);; i- F/ Z b/ A/ G4 l
- Serial.printf("Update: %s\n", upload.filename.c_str());" i! I: u: @- T7 {" q4 @/ E. c
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. {5 k# K W: {9 W8 n - if(!Update.begin(maxSketchSpace)){
8 N8 c7 P. r+ F4 D4 V ~1 h - Update.printError(Serial);- J2 V5 |; t" }( w3 j" ^& O |
- }; v2 k3 U$ B2 J5 a
- } else if(upload.status == UPLOAD_FILE_WRITE){$ m% B: r2 l4 S* Y& b; J: Y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( w4 u) [" v' b7 [' ]' \& ? c# C- F& C - Update.printError(Serial);, r3 b: o$ K8 X1 v5 x6 _5 ~
- }4 a, m% z# V/ z+ \, w: F
- } else if(upload.status == UPLOAD_FILE_END){
0 v' ?9 G; I' @ - if(Update.end(true)){6 q! G( }4 G0 ~8 j" l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& J3 j" x" E* `* j9 g
- } else {2 L$ p& B: G% v% Z
- Update.printError(Serial);+ [; Q; |% C, a, k) q3 ^
- }, M* g: I4 _8 Q* W
- Serial.setDebugOutput(false);
% }5 J1 }) O8 r$ J - }0 G+ H- G H$ @, D1 V% t
- yield();# @1 o5 C# h( n
- });
% a: P$ ] D7 O3 d0 a7 \ -
n0 c3 B2 F6 }+ C) |2 M0 D - digitalWrite(2,0);9 h. X. q& d8 O4 [
- mainAction();) S7 g9 `% T. }% b6 D
- if (digitalRead(0)){* k" g# [5 P: i6 @ j
- ESP.deepSleep(0);+ S, a, [* L6 S
- } else {
' x! _' f1 {7 f2 E( Z - server.begin();
9 P8 m; N- n& M1 T% l8 N6 g - }
9 f1 {8 s; v) Q4 s - }
9 J5 N" k2 p" g% l7 t - void loop() {
* t* h5 ^! z$ [& I, p0 A - server.handleClient();, U: q/ f: p- u: }
- delay(1);) R/ E8 k: L8 |4 ~' E* @
- }$ p8 ]6 Y' M5 ~* R* N/ {
- String doGet(String url){
' z9 ^8 ?" K) m' O9 u9 i4 n" `/ y$ S - if ((WiFiMulti.run() == WL_CONNECTED)) {2 I, s9 a' h( [- ?5 |3 I2 z$ B& V0 N. E
- HTTPClient http;
8 D. [ z) |) o( w; r1 t- Y - Serial.println("[HTTP] begin...");
* U9 f% T3 i2 z/ B' f( Z) r - if (url.startsWith("https")) {7 h# f3 `: j0 K C) j* {: E# S, q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- N5 P1 k1 V2 E) V) S - } else {$ n0 O& b! p; h5 G
- http.begin(url);
# \. _2 K8 }% C+ I8 D0 u - }% Z( _5 @, ]. i7 Y2 _/ c
- Serial.println("[HTTP] GET...");2 t5 C( o4 ~+ w
- int httpCode = http.GET();" z1 Z! m; \: d$ f
- if (httpCode > 0) {4 w0 Q/ z% g& H& g$ o
- Serial.printf("[HTTP] code: %d\n", httpCode);
& O" W. S; a0 S c' T" |$ x - if (httpCode == HTTP_CODE_OK) {
$ i' A2 L# K# p! q. O# [- x: v - String payload = http.getString();' ~. Y4 k4 y8 O* r
- Serial.println(payload);
# a2 \4 c+ l7 v - Serial.print("\r\n");
3 V- O9 K3 ^- x0 f- _; c* o - return payload;! \' Q& ] r: t
- }/ C0 j( }* o1 \# R% H/ b2 ]
- } else {
' Q# l9 o' O% S - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 p1 v, D1 K6 x" W+ G/ `4 y - http.errorToString(httpCode).c_str());
. Z# V: x; D! c3 Z' ^ - }8 I3 R* a/ T" M4 x+ }1 B& L
- http.end();
; }9 N- T# Z9 H# v* z5 K - return "";
) [! L3 m! m6 }3 B O# M - }" ]4 B" c4 k% S& H
- }
! J5 T. A$ N3 h: A% H$ z - void mainAction() {
: a- `6 b8 e7 t% P3 H - // 发送请求
; Z% n' a) b$ n) C3 |# h3 J - doGet("http://google.cn");
5 w) ]" _. \0 P! n ~5 Z7 e# O - }* C. [$ g8 @- |' ]3 x
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