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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: F: N/ l& {# P$ _, Y- #include <ESP8266HTTPClient.h>, |$ Y8 K6 D6 r) d5 D2 L) ?
- #include <ESP8266WiFi.h>5 u- U; X0 ^7 L
- #include <ESP8266WiFiMulti.h>
- i4 u; l K% w/ n: h( {/ U7 z/ ~ - #include <ESP8266WebServer.h>$ x8 `! Y8 x7 a6 b. }6 ]
- #include <arduino.h>0 z" j. O4 ^; M9 {, n/ d( m" a
- ESP8266WiFiMulti WiFiMulti;8 _. T5 P9 C+ s- F
- ESP8266WebServer server(80); \! \, i& q+ E# m. K7 {& A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 h7 |7 _1 X) t, Y4 {. y8 i
- ADC_MODE(ADC_VCC);
, C5 m) r- Y& Y1 H( _ - void setup() {
5 [3 L/ {2 H4 O9 u' K( G S! V8 H - Serial.begin(115200);, x, y; X5 }( ?2 q. Q/ v0 B% k" S
- Serial.print("\r\n\n");
# A8 i. v: Q Z- j! M# `/ Y8 _ - pinMode(2,OUTPUT);. t' p' e+ E0 `5 Q
- // WIFI
# u7 P2 f2 D; G3 v: W4 }8 F7 ^ - WiFi.mode(WIFI_STA);
* q0 c. v4 q% M - WiFi.hostname("Sparkle");
9 v% V) g$ \/ E7 v - WiFiMulti.addAP("wifi ssid", "wifi password");! g$ _% B: p. S! I. E8 Z9 l5 ?
- int tryNum = 15;, B. J7 f4 E9 ]; t6 t
- Serial.print("Connect WiFi");" Q) ]# X: |0 C q+ W
- while (WiFiMulti.run() != WL_CONNECTED) {3 \" @3 t2 ]. ~$ a* ~6 M( m( S
- digitalWrite(2,0);$ H5 v6 Q1 I4 ~3 p' y$ A
- delay(200);
2 I! d4 r4 F- J6 N# ]9 q( t - digitalWrite(2,1);
, u: G [2 I. a0 c. R/ V9 \ - delay(300);
: @" C( t C3 o2 C - Serial.print(".");* g# v% f& ^# K
- tryNum--;. U0 H5 b* g* Q' o) u+ W
- if (tryNum == 0) {
# [9 g3 a' J+ c) d7 u# h/ } - // 1min) z: w# M& x& J5 ]5 ^
- // ESP.deepSleep(60e6);4 _ N! C2 \2 x/ n( s' \
- ESP.deepSleep(0);
6 ~! O0 I$ V$ }' m3 q _ - }
k1 ]* f7 C! o+ R9 x, A6 v! u - }
$ q% p% n3 C3 A* j - Serial.print("\r\n");8 `2 U5 _( k3 X6 ]1 v9 x% i
- digitalWrite(2,1);
t% V' d% u+ E b9 N9 h1 [0 w$ D - Serial.print("IP address : ");# L' i: C6 O) B: Z
- Serial.println(WiFi.localIP());
' ? w" ~' j6 z/ C, x' x( h - server.on("/", HTTP_GET, [](){
; M3 M' V G% p$ V) \; u - server.sendHeader("Connection", "close");
3 y8 P2 W& Q8 n: a7 u7 _+ O - server.send(200, "text/html", serverIndex);
* q2 S+ e3 G( H* w" {8 t - });" l) O2 r) ?" r% v& s
- server.on("/update", HTTP_POST, [](){+ q4 A7 j+ n; X
- server.sendHeader("Connection", "close");; S6 I: v: d3 K
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 t: q: K" h h) n. e9 L
- ESP.restart();- X4 }+ v- n, u I ^) b" M
- },[](){
, R7 R) K' e) a0 H6 P( ^" n - HTTPUpload& upload = server.upload();
! k/ m/ a- {2 _. m. } - if(upload.status == UPLOAD_FILE_START){
- Q0 k6 |) x6 U - Serial.setDebugOutput(true);9 P8 Z, e, Y6 w3 W6 K
- Serial.printf("Update: %s\n", upload.filename.c_str());! A! s7 B9 D* E/ Y0 n" c( p
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& n+ o! u; P) F% l1 K - if(!Update.begin(maxSketchSpace)){
0 [8 ` G$ n6 g - Update.printError(Serial);% _3 a( w' H+ z3 D1 e
- }) Z1 z7 a. J9 h9 q, S+ S, Q0 ]# |
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 N, J, c% n# u4 M - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% B) Y' q9 O4 P- q3 d" t8 t - Update.printError(Serial);
/ V& m7 n8 n+ F# U - }" E% y0 `8 }- R$ G
- } else if(upload.status == UPLOAD_FILE_END){
" J0 K- ^4 B( ]4 _ - if(Update.end(true)){. Z0 P8 _4 A+ t& D2 K
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 R3 C6 Y1 B& q) g - } else {
* _* O5 Q& \6 [5 }, g; }( P - Update.printError(Serial);
& F \7 [$ Y) Z! ?% t, c" t' `; w/ V - }
0 A- j; h } C6 b" C - Serial.setDebugOutput(false);! g& J& s4 e- f0 u1 r) f% Q! _" h& y
- }
" m/ U$ }) P9 |( { - yield();+ S! f* F' ]$ r2 q2 v8 S/ `1 z
- });
- b# M/ R" |* A- H) ? -
5 y9 |7 ~ u5 p - digitalWrite(2,0);1 K% e9 q' ?" |2 U6 q
- mainAction();
7 {0 i" y$ z/ m! Q - if (digitalRead(0)){$ F5 `* G: m$ N5 [9 S" I8 `
- ESP.deepSleep(0);! d0 p7 J* S, `4 p2 |
- } else {6 X8 H* ^7 m5 J8 Z. T. X, E$ E
- server.begin();
$ u" d# s0 ~; J( i2 U( w - }
! P3 ~, {! |7 U4 g X - }3 y$ c( h7 ?/ T. I; i3 L/ y& X" d$ F
- void loop() {! A8 P" h! V! C2 M* a% J7 `
- server.handleClient();
% Q$ Z. l( ]- G& f - delay(1);5 |# Y! a# i& a. C7 h. B
- }/ ]# N6 r( v8 U+ Y+ [5 D) }
- String doGet(String url){
5 G; q+ G3 V* A' D: ?. m% G" Y - if ((WiFiMulti.run() == WL_CONNECTED)) {
. [" }8 p. J' K( _0 |9 ` - HTTPClient http;
- J" \! ^8 Z8 @ - Serial.println("[HTTP] begin...");5 g0 N3 c) p1 h3 M- O7 D; ]- E3 }
- if (url.startsWith("https")) { v/ @* l, r; h3 [4 F9 s- w2 [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, y5 l! K- }% {' E4 r5 p0 ~" D - } else {* e5 w# E. c/ t/ m- Y7 w9 N! j
- http.begin(url);2 g8 n7 U6 `) a, U7 y7 }. w
- }
5 k6 ~" L+ w# y" a: o4 \ - Serial.println("[HTTP] GET...");
1 ~# K0 U1 O2 Q, t - int httpCode = http.GET();
) j" P" i! I: Y$ }4 y9 p - if (httpCode > 0) {" _; ]: y+ h/ d7 F
- Serial.printf("[HTTP] code: %d\n", httpCode);6 m- a$ |) N7 q* ^; m$ K
- if (httpCode == HTTP_CODE_OK) {# x8 O! X5 y5 ~: T% y/ f$ z7 i
- String payload = http.getString();7 s2 Z1 f$ X' [6 a
- Serial.println(payload);% E9 i: {1 \- ]' V
- Serial.print("\r\n");5 E4 |; u/ q# w/ E0 |
- return payload;3 z2 `) ]- Y7 P, ? N, ~0 \3 @
- }
' j& R5 Z- ~- l H3 M& y - } else {8 V3 o0 N: c4 C* F
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ j; C& z7 k1 w8 Y7 |( Z
- http.errorToString(httpCode).c_str());
) U0 F# d8 u5 X1 Z- h - }
4 d# U" f8 g& K# Y9 `3 l - http.end();
: e" `% a( m3 Y/ R+ ] - return "";
4 i4 h3 q7 a% V$ ~& H6 V# t - }
2 g4 [( u4 b+ ?2 x, L% Q) C g& I - }
+ {3 D: ?+ @: ]1 s! n( G9 u - void mainAction() {
- e5 t. H4 j' X2 n9 U5 W - // 发送请求
- G3 }, W' C! R$ x - doGet("http://google.cn");
1 ~/ w# c9 q+ ]. O) E2 _ - }+ S1 M6 J( K u0 p7 g
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