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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)
& p6 O. ?# K B) W/ \- #include <ESP8266HTTPClient.h>. n: C9 p! O: F. p' {- V7 E
- #include <ESP8266WiFi.h>5 Q" p, o# X P0 T2 K
- #include <ESP8266WiFiMulti.h>
$ s) ^, s2 ^9 u( j4 ^/ Z- B" b$ L - #include <ESP8266WebServer.h>( n. C6 |: r. E* |
- #include <arduino.h>
1 s1 D! Z. Q2 c% s, C - ESP8266WiFiMulti WiFiMulti;
: X$ q$ W- A, e+ u2 l - ESP8266WebServer server(80);3 ^2 C5 t! e. s( P$ p0 D: N x
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 S% u4 `( s6 ]- _1 O* | - ADC_MODE(ADC_VCC);& e$ D+ C# O. S' `0 p
- void setup() {
9 n- s8 A, [ ~ v - Serial.begin(115200);1 G' m& r& o8 I2 n0 m! o6 t3 Y5 ^
- Serial.print("\r\n\n");6 O2 u; D) R- \7 Y e6 V# m; f
- pinMode(2,OUTPUT);0 ?: T$ d r% K7 _) ^
- // WIFI
3 }4 E ^0 \% W/ b1 b6 o, d* R - WiFi.mode(WIFI_STA);
# ]$ ~. h. [1 d& K - WiFi.hostname("Sparkle");' {) }5 m) Y! o; N8 c3 E# a
- WiFiMulti.addAP("wifi ssid", "wifi password");- w" d t' v# Z& J& G
- int tryNum = 15;
9 o" }2 d! G- } \! b/ [; _ - Serial.print("Connect WiFi");, G3 X; U8 {0 @, S' Z2 G1 f
- while (WiFiMulti.run() != WL_CONNECTED) {
1 P) D! t# u: G+ H' H - digitalWrite(2,0);! m$ O& @4 k# u- s% ?
- delay(200);+ r* U$ P# [ }% L5 H
- digitalWrite(2,1);
# V. s# \1 F! F' e9 W2 p8 G - delay(300);
$ @4 j" [* X v4 V( A% A - Serial.print(".");
5 J' I8 y) T H, R. i. L - tryNum--;
' }8 W& `. ^, \% A" N - if (tryNum == 0) {3 Q8 ^' J- X% j, J$ G, m
- // 1min' N, ?+ ~8 g; Y6 `& g4 c: j" x, N
- // ESP.deepSleep(60e6);
" S( A# X5 ~( _2 B - ESP.deepSleep(0);
, H3 {& S! ~* f+ i! p; R - }) j) s- |1 ^9 c# y& t* V
- }; }- u5 J' a* I9 ^
- Serial.print("\r\n");
' w K$ [- z* X8 A) X5 c% e; w( l; t - digitalWrite(2,1);
$ j& q3 X+ W7 S - Serial.print("IP address : ");
8 ^% }; Y3 S% x: k - Serial.println(WiFi.localIP());: E' v( h& R h
- server.on("/", HTTP_GET, [](){
9 |% y1 Y6 J$ v% n/ Q - server.sendHeader("Connection", "close");" L$ _ i7 k1 N
- server.send(200, "text/html", serverIndex);
& b. W& N$ y( |1 Z( s - });
* U8 ~; I+ Z5 S1 x, p1 g& I - server.on("/update", HTTP_POST, [](){
+ e9 {: ^- q2 I; Z; \! m - server.sendHeader("Connection", "close");5 w% M* v6 I) K% `- k W' S( m
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); `: D4 m7 p N. z. e* Q
- ESP.restart();, i" A' l5 N' f, x# M1 p$ Y; |& H* Y! _
- },[](){
8 p+ k% n: `5 p5 m9 `% N - HTTPUpload& upload = server.upload();
" K# a0 ?" B7 M% |3 B - if(upload.status == UPLOAD_FILE_START){
$ ]( A$ Y& }+ u. T. a h - Serial.setDebugOutput(true);; S8 O" Z/ A$ n
- Serial.printf("Update: %s\n", upload.filename.c_str());, M4 C; _ c5 X# z' e1 q4 F% a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& t/ v1 i5 m; V; t2 V% } - if(!Update.begin(maxSketchSpace)){4 ]8 E w4 [' j
- Update.printError(Serial);$ `9 M. i/ g+ k0 A0 |3 W% w- f* T
- }
, j. w; F1 w+ ?! H8 Q. v V - } else if(upload.status == UPLOAD_FILE_WRITE){
. U8 B4 S, ~9 U0 m4 ^ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! ]$ l( ?5 y' D0 }1 z$ F; l
- Update.printError(Serial);
2 q0 ^$ G/ y: Q - }$ S! p/ `& G2 d1 a" W5 T0 K
- } else if(upload.status == UPLOAD_FILE_END){
y- f( ]- R J* d' y/ u - if(Update.end(true)){2 X9 K) H- A; i( z9 y3 {6 q0 e; U
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);8 k' z. d8 Z' T4 a' C
- } else {
9 U- o6 U, K& J, E! s - Update.printError(Serial);
. P. p% `1 ~" J; D/ v3 q - }
) d- {% r8 J4 u - Serial.setDebugOutput(false);
% C" v0 U' l7 c8 t/ m - }
6 p& K" c3 z. r- m8 b1 R - yield();
9 T7 G' G! h' H( s0 C. Z - });- o9 R; X2 V& I9 ^& R7 [
- # Q% V, ]! i( z% l0 d) m& M& T- c9 ^
- digitalWrite(2,0);2 Z+ w4 t. Q( ~2 k4 o* a# M
- mainAction();
. \2 D7 s- N4 X- V5 a9 Z$ [1 n9 N - if (digitalRead(0)){
; _6 c) k% B) J+ v! g) g* r+ ?+ J/ s - ESP.deepSleep(0);$ ?; g8 E; D$ v9 B
- } else {( B$ I& Q8 g- U5 ]4 G
- server.begin();
' b) L& [7 g) A k - }2 [9 U* F; S2 e" U
- }. c$ J- _- I. i$ R6 k
- void loop() {( f0 D8 P/ Z) W9 F4 S; a; ^( N
- server.handleClient();
1 O0 \- f# Q' ]1 _! q G# U - delay(1);( S0 f4 A+ U0 B! `- ]! b+ N2 V: }
- }; n: [ u+ O: M5 r
- String doGet(String url){0 M' P5 M9 ~" W/ [4 n* J, P
- if ((WiFiMulti.run() == WL_CONNECTED)) {3 o, Z* h9 x* ~5 ] Z
- HTTPClient http;
) `; B9 C7 }+ ?1 k - Serial.println("[HTTP] begin...");
0 ~+ W% e9 {9 [6 {+ X* {1 } - if (url.startsWith("https")) {
: F" n) y" E/ V8 m - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 T# Y }7 O+ T+ m& |1 E+ P2 T
- } else {/ a2 [# r; t# O+ _. P- S1 x5 w6 p
- http.begin(url);- g) R# t+ [2 Q4 Q. e: ^, p! }6 k' ~
- }. }/ _- D: g2 q. m, X/ g
- Serial.println("[HTTP] GET...");
# H/ A2 c( X+ T& x( P" y - int httpCode = http.GET();% C: D% D) [+ b9 r& A; w$ y( `- Q
- if (httpCode > 0) {' [5 K! V( {7 Q) P
- Serial.printf("[HTTP] code: %d\n", httpCode);" @2 h& F/ H/ X$ g I% N7 \9 p7 q, ]
- if (httpCode == HTTP_CODE_OK) {
- Y3 x# \( T7 i' @. K5 S - String payload = http.getString();# x7 Q3 ?# G5 X, z% Y. ^/ D8 `
- Serial.println(payload);
6 k$ X2 Z4 x7 } - Serial.print("\r\n");
8 Z9 x) e7 B3 r5 B# H6 c6 | - return payload;
D% J' I, J* b. T/ a- l- u5 } - }" h# i- r& G5 [" g0 T- f
- } else {
2 N( U8 T0 i. N1 i, M* L1 ?+ }# z - Serial.printf("[HTTP] GET... failed, error: %s\n",
# k5 Z/ G- S, J# c8 t L* r3 i- b3 C/ a - http.errorToString(httpCode).c_str());
3 Z, \8 s1 w8 h2 ]7 M" t+ L - }
! e- f0 \1 X# z( |- w - http.end();
7 w T9 H6 K2 \. t - return "";
! h( Q2 V- D' d1 U. s8 ^ - }
. R9 _$ `8 F; z1 j - }1 C" K1 a1 g9 _& s
- void mainAction() {; d# ?0 C+ {$ p V6 M+ w
- // 发送请求
8 W6 H9 H' j% T8 j6 K( q - doGet("http://google.cn");. ~! i4 J( f4 _9 J6 a: d8 |$ g* m
- }
% Z; ?" F$ i) |+ t0 K/ `; ]% w+ Y
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