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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). Z# L+ @# Z) z1 m7 w2 l$ M
- #include <ESP8266HTTPClient.h>. T- `& C' [ x$ o# p2 Q
- #include <ESP8266WiFi.h>
% m4 r9 Y' n) o( l/ ?7 `8 ^ - #include <ESP8266WiFiMulti.h>3 c: o/ F" o U2 N5 p* ]7 T5 i
- #include <ESP8266WebServer.h>) W5 z* Y1 j, K5 t; X" O
- #include <arduino.h>
5 m/ k7 V" D: H% [3 l - ESP8266WiFiMulti WiFiMulti;
* c4 H8 [# c8 ` `: v) | - ESP8266WebServer server(80);- ~7 W4 ~6 Z& I1 I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: j5 `2 p- g0 U: ^9 r8 y8 A
- ADC_MODE(ADC_VCC);9 u; x Z: t% a
- void setup() {; |4 j0 [7 s- Z
- Serial.begin(115200);
. I* o3 }" b7 T3 B6 { - Serial.print("\r\n\n");
: D! r2 ~2 B8 _7 E - pinMode(2,OUTPUT);" v3 E* K; d {. }8 h' `' U
- // WIFI
1 G+ u! _$ g/ x - WiFi.mode(WIFI_STA);
, v, F8 v. Y% G - WiFi.hostname("Sparkle");6 @; v* x8 Q! I3 ~% L' G, B
- WiFiMulti.addAP("wifi ssid", "wifi password");
3 L& e I: [: U# G - int tryNum = 15;" j) C& p5 S3 H' S
- Serial.print("Connect WiFi");4 ~/ k: Z3 i' {% r, C( X) J9 ^- X
- while (WiFiMulti.run() != WL_CONNECTED) {8 C7 Y7 {# O' r; c0 w
- digitalWrite(2,0);7 n& f; d @% B N' y5 ^- N
- delay(200);
% N1 t( i, w! }1 H - digitalWrite(2,1);! r* R" [! w' r5 r- _
- delay(300);6 w6 J8 k* q% E7 }8 t
- Serial.print(".");9 N* n+ n# j+ l6 Y: |& a1 q
- tryNum--;5 k( I1 |! X8 ~8 ^
- if (tryNum == 0) {& @% i* c I5 Z; i, i6 H! Z
- // 1min8 H* g h3 p( x3 G1 {
- // ESP.deepSleep(60e6);! S( j4 I+ f% P- x
- ESP.deepSleep(0);
" \7 X7 u# ]0 W% m( G% b$ \/ J: c - }
! ~- G& _2 q; R3 U+ \% e1 L - }
# o7 T$ o3 |2 H* w. C) M - Serial.print("\r\n");
# m4 Q, S% B) Q* k% o - digitalWrite(2,1);
; r3 y8 a, \% ]7 N - Serial.print("IP address : ");% S5 j0 P; I' y
- Serial.println(WiFi.localIP());
& _# X1 p8 S. _% c' {! N5 V - server.on("/", HTTP_GET, [](){8 s" `* O1 K& U
- server.sendHeader("Connection", "close");
& {3 O ]0 w% x" B- r/ \, y - server.send(200, "text/html", serverIndex);
9 i& l# t2 E' x1 x/ y - });. I1 G) |( r: n" H. [ G! X
- server.on("/update", HTTP_POST, [](){
1 M# J/ P3 S; y# \2 ]0 }/ H0 l; t - server.sendHeader("Connection", "close");0 W# N; w# s: ?! o- J' F7 ^% V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, r# P p8 ~' v5 m. m
- ESP.restart();
, l/ o' }* T& |( V/ Y' u - },[](){
9 e" |; p# C! e! _ - HTTPUpload& upload = server.upload();
6 f6 \2 f1 L n" u n8 X( r; @8 o; q - if(upload.status == UPLOAD_FILE_START){
4 [7 t$ I) U0 K! }% S& M& R - Serial.setDebugOutput(true);
2 d, |9 _7 A0 i2 n# C( C/ K# Z) w& C - Serial.printf("Update: %s\n", upload.filename.c_str());
) ^1 k: F) |# f- d - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 j3 t' F u5 `, {+ F8 F
- if(!Update.begin(maxSketchSpace)){4 }0 }* A$ m' k% v( J& s; X
- Update.printError(Serial);
9 t. a# a, _- z, T7 [" P - }
+ @3 u% z2 Q7 L: E3 ?% c; H* d - } else if(upload.status == UPLOAD_FILE_WRITE){* F0 S# L! Q" a9 t# K/ [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 B/ W* H1 |# d) P - Update.printError(Serial);+ @' Z1 O$ {: ^( N2 _
- }
3 s1 [( x+ }. ^% L! h2 p' i - } else if(upload.status == UPLOAD_FILE_END){
i1 U& r" K4 v8 U/ b$ @ - if(Update.end(true)){
6 T& t h+ p! c* g9 `; O! |" N% a/ L - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; I; Z A% {# c7 c7 A
- } else {1 s9 t: {; W. k' f! H
- Update.printError(Serial);
# F/ t j( c! w - }
3 A: B% _: t, t2 G8 E - Serial.setDebugOutput(false);
+ L( y! `! G: k - }$ F9 Q, J5 o8 w) V, M% s
- yield();6 J$ m. s4 E, b( n$ l. M& l# T
- });8 C. L) V( w) S9 x# A; y
- P( h' g0 ^% _- ?
- digitalWrite(2,0);! X( ^" O6 U" W) ~ U" u; n3 F, r' z
- mainAction();; E- S1 E n' u5 W% D U) [
- if (digitalRead(0)){
- w# _ N2 g- x, k7 ^, v - ESP.deepSleep(0);
; D* u: E) B. S, s - } else {
3 u' h2 I: o x% x8 B - server.begin();# |" G' d F8 {+ }. c
- }- i/ O) d \ b, [' E( ~
- }
+ t0 _5 r3 a7 c( N# [( |+ A - void loop() {/ ?1 [0 S; \6 `3 h o
- server.handleClient();# W" F5 w/ X, U; r: y
- delay(1);" n0 U: H/ v1 c. N9 ^' X
- }
' P- G5 b/ v- r; ? - String doGet(String url){1 N- H# s( w2 ^& m- l# ]- L
- if ((WiFiMulti.run() == WL_CONNECTED)) {! y" }( H+ ^$ @6 S" X& t" o
- HTTPClient http;
; Q0 P& `/ X# j* n - Serial.println("[HTTP] begin...");# \6 }; n; p1 C, D
- if (url.startsWith("https")) {
( u, P2 p+ Y3 Z8 e - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");3 K0 x! C' h. G% C7 z3 N2 w7 j* z
- } else {
# U% K) p: c# j ^% b. F - http.begin(url);
' Z$ T) ]" b" p& M u- f - }
g( M% p/ h( Z* Y' j g- d - Serial.println("[HTTP] GET...");
6 L+ U( d4 k% P7 ^: _2 s - int httpCode = http.GET();
9 l( j9 @ O) [) x( n @. y - if (httpCode > 0) {
' A Z1 z9 S! w: F - Serial.printf("[HTTP] code: %d\n", httpCode);* W' R" P& E% z2 s' \; H# k# D
- if (httpCode == HTTP_CODE_OK) {/ p. Y3 j) i4 ^
- String payload = http.getString();5 M3 s9 C+ g& D" ~8 I) G9 l
- Serial.println(payload);- G, I( @: i& \! T: L
- Serial.print("\r\n");4 J6 E: O- x$ \- s7 C1 h0 r
- return payload;2 X/ _* C$ i/ J/ ]
- }6 B. y* [/ V8 U( J6 ?
- } else {
7 |, O0 _6 L, e - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 |6 K" P; k* T) \/ D5 l/ x2 v4 \ - http.errorToString(httpCode).c_str());
: V P4 t7 O K d/ [3 H0 M - }
0 N: L7 M7 K/ ~1 J" x! V* E* { - http.end();
0 n* e5 R5 S: U5 e - return "";
) V, E9 a# {% I9 I F: Y - }
, {8 ^' [% F* } [ - }4 Q0 e: `1 `5 w5 D* u) o
- void mainAction() {
% I1 P/ o! K, {- D3 f3 P' I2 X - // 发送请求
, d+ B9 u( }0 p% x! r - doGet("http://google.cn");
6 V, h8 R3 {( Y7 J6 ?$ O# r9 a - }8 O+ n% Q2 K* v+ _8 q9 Q. q
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