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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); h; i1 h- h# R/ u4 D
- #include <ESP8266HTTPClient.h>7 _# g, V% r' b+ C4 X5 J
- #include <ESP8266WiFi.h>
1 P! R4 U' B3 s - #include <ESP8266WiFiMulti.h>6 c8 s7 n: v8 R9 P5 b
- #include <ESP8266WebServer.h>
! ^- Y6 `. M, n% r2 k# c - #include <arduino.h>' g7 q. i! ~7 h/ @
- ESP8266WiFiMulti WiFiMulti;9 ` ^) H0 e/ W2 ^* }
- ESP8266WebServer server(80);9 H2 L4 K7 @9 Q5 e0 l* k: t7 \
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! K/ f# {' x+ M) G2 i9 i6 r
- ADC_MODE(ADC_VCC);7 K( t: n, B, e( g8 _8 c$ f2 ~7 Q% m
- void setup() {. Y" H* x& D9 Q! Z9 M- O
- Serial.begin(115200);2 i) }7 s( s% T+ K
- Serial.print("\r\n\n");5 I K- i/ x$ s }1 N
- pinMode(2,OUTPUT);
7 Z8 O. U2 g, l6 Y4 H4 [ i - // WIFI
, k7 E$ d& _+ W* x% i - WiFi.mode(WIFI_STA);9 z- C+ `. P4 O. ^3 G, a3 J6 T5 b
- WiFi.hostname("Sparkle");# q2 V5 r/ T. J6 \8 W- p
- WiFiMulti.addAP("wifi ssid", "wifi password");
! Z ] A% s6 J/ P2 J2 `- n& F - int tryNum = 15;
9 H" _: s/ g" S+ s2 ?: k - Serial.print("Connect WiFi");! W* X+ V v9 }
- while (WiFiMulti.run() != WL_CONNECTED) {
( L7 \3 n$ T0 y - digitalWrite(2,0);& q3 b7 G) ?. b# s4 T" X9 {
- delay(200);1 J4 @: `( P7 A- `7 g( n: Z
- digitalWrite(2,1);
9 I2 K. A! W) ?5 m+ G# P - delay(300);
/ i; |! I* m& i- i- e - Serial.print(".");, B+ i3 p& y6 `7 k2 r, h
- tryNum--;
, p6 F( W8 d. A8 L/ } - if (tryNum == 0) {. | u8 m1 l" h1 d0 F& h7 Y6 `
- // 1min3 F) {3 R' v5 v" p' q1 r
- // ESP.deepSleep(60e6);
4 t1 V; G- A7 j4 | - ESP.deepSleep(0);
" J$ O$ V/ Z- U# m# y, w! u - }
# ~& u0 z( O+ T3 c1 b9 b2 ^' G - }0 o6 S/ N/ A+ w3 j$ C" [
- Serial.print("\r\n");9 l5 }. L( f$ E/ J
- digitalWrite(2,1);
! k- \: o8 L1 O& O - Serial.print("IP address : ");
; j! t9 i7 s3 ] - Serial.println(WiFi.localIP());
" p1 h$ O* c$ T0 z5 U - server.on("/", HTTP_GET, [](){( h( K; M8 F! d$ M; y
- server.sendHeader("Connection", "close");
w4 J0 w- \7 U, T4 D3 J* k - server.send(200, "text/html", serverIndex);8 w/ r0 f5 z M& Q* A
- });
& l8 J" B n' \. t. `# U. `; s - server.on("/update", HTTP_POST, [](){
, V3 J. Y7 G6 `" C9 |; L2 U - server.sendHeader("Connection", "close");, U1 ^3 g4 Y% M5 B9 m
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, c- U( n1 |: m& y - ESP.restart();
' }: p3 p0 l& i4 N - },[](){
% U9 D' l! {( o. t0 v3 l - HTTPUpload& upload = server.upload();1 o& n/ N/ s9 ?5 ^5 N2 g
- if(upload.status == UPLOAD_FILE_START){
1 }1 I) x3 z8 H0 g: m" @ - Serial.setDebugOutput(true);4 k- r. C8 T5 o* F
- Serial.printf("Update: %s\n", upload.filename.c_str());
+ s+ B: R: G. e - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! }" D1 X2 s' J6 g. P2 F2 Y
- if(!Update.begin(maxSketchSpace)){
' f0 W/ ~3 m. J4 } - Update.printError(Serial);* l7 T1 D! S9 o5 i3 g! q
- }
Y, }5 ]. ^- J6 _5 ]8 u. \- q - } else if(upload.status == UPLOAD_FILE_WRITE){9 C: l6 |6 J9 b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& {/ M. `+ m2 t
- Update.printError(Serial);) {' f8 [0 p. r( R
- }
5 v& ~4 ~4 H: W- a! G# y" f2 J - } else if(upload.status == UPLOAD_FILE_END){
- o7 ]( v7 n3 T @+ Y! x - if(Update.end(true)){
: ~: l" f& d9 D3 i& R" d9 f) Q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& z5 Q# D. G8 `* p4 C% N - } else {
" Z1 i% o4 A8 c0 b* y% { - Update.printError(Serial);
( n2 A9 n. Y6 s# X/ h1 P! q/ m - }
+ @5 G4 S! b+ d) B- Q, F+ t* H - Serial.setDebugOutput(false);, z, i! g* X3 w2 f
- }$ u6 K5 ^0 T, C5 X3 s/ ?
- yield();2 `! k5 ?, V) D$ X) K" e; i( h4 P
- });
' Q2 i- _ b) T0 l; ]- W8 y - 7 V( L' x0 f* Q8 f; v- Q/ R
- digitalWrite(2,0);+ u5 P+ l% `( b% q; a; b9 v, X
- mainAction();! [& Q: l# @) O" p
- if (digitalRead(0)){
/ R- q4 E, J+ f - ESP.deepSleep(0);& O5 k ]# S4 m4 s7 u; t, H* w
- } else {8 w6 C3 m8 K$ r: T2 r/ C' R
- server.begin();
& t" ?" E; P O- T) ?7 s8 J7 U* ^ - }
3 x3 Q; q U" U1 Y; B% h L - }
- P0 [+ b: R: m3 N4 _+ | - void loop() {
+ L5 o* x% [) c {3 \6 @ - server.handleClient();
2 H4 \$ M/ m6 Q1 j - delay(1);4 v- ]# U. U! o# X5 G7 H
- }+ R1 \% O2 K: e' S: }9 |# a6 O
- String doGet(String url){
. K4 y! V# f6 V9 P+ Z' i - if ((WiFiMulti.run() == WL_CONNECTED)) {# e$ Z5 V- g7 V3 p P7 M
- HTTPClient http;
; |9 I8 X6 ]0 j4 N# W2 | - Serial.println("[HTTP] begin...");
2 m9 _( ~4 t) w0 a" m3 r; H - if (url.startsWith("https")) {( S/ F% a9 J1 ]. Y+ A
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 Z$ \4 U/ |% B, [% ~; E6 @
- } else {
3 d9 f7 ?( d! W' u" g - http.begin(url);
) d2 _) u" { l, c - }% X- y$ \6 v2 b" i, n: O+ \
- Serial.println("[HTTP] GET...");8 I' X* n5 l: E/ \* o5 T
- int httpCode = http.GET();
0 u1 ^! Y( A% c; a5 r# z7 i - if (httpCode > 0) {
1 f9 d4 _: x2 r# S - Serial.printf("[HTTP] code: %d\n", httpCode);: r4 `& ~ e# E8 h( \% ~; e) M
- if (httpCode == HTTP_CODE_OK) {" ]# x1 C3 S8 X4 q
- String payload = http.getString();$ G, M$ c; ` _' P
- Serial.println(payload);, c1 y5 A# D" e B' a) D
- Serial.print("\r\n");2 ?7 A. T8 b0 [/ H0 R. c- ~; F4 N5 i
- return payload;
; u: ]/ G- M1 E - }
5 W7 N/ f( G Z& x( R - } else {' T' m3 G6 R f! P3 q& J
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' ?2 D7 i# L( {9 h$ L - http.errorToString(httpCode).c_str());1 L7 w0 S4 k* `& f7 B4 \3 J
- }1 O" Q: t- U8 T! Q
- http.end();! o* D- H4 a6 N' h
- return "";8 b7 ^ N& b3 b( f& I9 y
- }
. [5 c9 [5 C9 F, S- q T - }+ s `- Z- }! N; |" f2 Y! n2 \
- void mainAction() {8 ^, ]4 Q' w! _# `1 P* x
- // 发送请求
; |, I- [1 Z9 v$ i - doGet("http://google.cn");
* s+ N4 X& b2 r- v7 ]7 ~ - }
! A" Y/ j; [( x/ }( S
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