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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)( N7 }6 G3 j% |, F
- #include <ESP8266HTTPClient.h>% x6 P5 l: Y9 T" H6 Y" N) |2 W
- #include <ESP8266WiFi.h>
: _- R: W+ d0 e4 x. _ - #include <ESP8266WiFiMulti.h>
1 N9 o3 i0 B1 D* \ - #include <ESP8266WebServer.h>
; g5 T& q4 d; h - #include <arduino.h>( o/ W8 p* o+ u& x& O" X6 D X
- ESP8266WiFiMulti WiFiMulti;
( C6 ]6 y! m1 B# B - ESP8266WebServer server(80);( @" i1 e9 q8 D9 R' L- p* A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 k7 B- L; a M" V5 q2 ?
- ADC_MODE(ADC_VCC);
6 \+ [( b7 J5 @8 p; P - void setup() {
8 b! K4 X. j* J s& I - Serial.begin(115200);
: d7 R; A7 C8 n4 c* n - Serial.print("\r\n\n");
: V% ]. i" x. V9 f) }5 n' @ - pinMode(2,OUTPUT);6 U& N$ @' o- u+ i; z
- // WIFI) @/ \9 `- \5 A( M, K" h
- WiFi.mode(WIFI_STA);$ U) C9 U. v( p6 k# ^8 Y3 A1 s W, @
- WiFi.hostname("Sparkle");
Z/ v) O" K! v# V r4 p T& }. m - WiFiMulti.addAP("wifi ssid", "wifi password");
' Z: }) N$ H' ~2 V, R, U$ c - int tryNum = 15; p6 g- P& Q s* H. [3 x5 f0 o* V, u% F
- Serial.print("Connect WiFi");
L/ c( s3 e( e# z5 l$ V: |+ H - while (WiFiMulti.run() != WL_CONNECTED) {3 h0 b, B8 ^% `7 ~3 ^5 M! w
- digitalWrite(2,0);. m V3 C' X& D' X; x; F
- delay(200);, y3 _4 V8 E$ r: g+ E& P+ w( H
- digitalWrite(2,1);
6 S' ]# ^7 W# T- a6 N- B - delay(300);
7 o4 Z, U& E0 }" u4 o7 `3 o9 j. x% T: Z - Serial.print(".");
: `* h& c% X% K1 F t5 t - tryNum--;
) ]5 W7 Y9 w) v | - if (tryNum == 0) {
5 S% v1 a) F1 } p - // 1min2 r R, E1 B2 |: }8 R4 J Y
- // ESP.deepSleep(60e6);# E2 ]9 e/ g% ]) x! C8 h9 P
- ESP.deepSleep(0);7 ?6 B; n/ e7 o0 m3 r
- }
# v* ^2 e4 j! r. O6 ]1 Q6 w/ L - }% d/ `2 Q* N& A& v% g# I. ]( _
- Serial.print("\r\n");( A6 p ?; Z" {
- digitalWrite(2,1);
) m# e8 Z) q* ^8 m% } - Serial.print("IP address : ");
, u2 R4 H) k' t# Y& I/ {# u. j! m - Serial.println(WiFi.localIP());
0 [# ]2 S& f* ~) P8 x" d0 I - server.on("/", HTTP_GET, [](){$ Z- J$ J, ]1 M' m6 h& b
- server.sendHeader("Connection", "close");' B4 k, {: ?0 j/ z; u+ H
- server.send(200, "text/html", serverIndex);5 n; e0 _1 [! s3 x
- });1 T) Y- x9 ?- h8 o1 S3 C
- server.on("/update", HTTP_POST, [](){& g$ ?; t% j( A' N j
- server.sendHeader("Connection", "close");* M4 P) r: L+ ?9 t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 _; X( X7 L4 u8 z) h* P, v - ESP.restart();
! _) R; v6 l4 @ - },[](){
3 u: x* y; K! ?+ _. B$ Z/ w. D - HTTPUpload& upload = server.upload();
5 ]0 m8 ]* f9 w - if(upload.status == UPLOAD_FILE_START){
6 \3 a u. q, J' L: V; {, {* r# k. v - Serial.setDebugOutput(true);% J; ^$ ~- O7 v5 m3 v
- Serial.printf("Update: %s\n", upload.filename.c_str());
% y$ P2 z( w4 U9 E- o- a" S* c - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& {5 k$ ^2 {" g1 L8 E
- if(!Update.begin(maxSketchSpace)){
9 j" r# i; I# ~2 _( Y4 w - Update.printError(Serial);! v& o# }# N: [8 ], M$ K
- }! f- C' N& S& R; Q0 m
- } else if(upload.status == UPLOAD_FILE_WRITE){
; S- v$ m8 O& ~' M' p1 h - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 G. f) l' n' C( O2 O! l% T2 T
- Update.printError(Serial);
1 @( \; M( K5 D - }+ h; K3 v! j! a0 D
- } else if(upload.status == UPLOAD_FILE_END){# W7 l4 P7 m# m
- if(Update.end(true)){
% j o0 H" j% Z( c) h3 w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ @$ U, I- E2 f6 y
- } else {
9 i# ]9 |- H. h; r7 \+ L; l - Update.printError(Serial);
9 X& k! T7 M4 n - }) H# M+ J7 [4 E3 \5 T
- Serial.setDebugOutput(false);: w1 y% O- f7 r. D% d, H. U& M
- }
, t/ w% U- q) I. ]# W% l6 Z - yield();& M2 I$ u6 q4 s0 p" k' b* _
- });( u: r# V8 ^( g5 ~- y
-
: D% c7 ^( m* @) ]+ e! c - digitalWrite(2,0);) K/ Z' d, K+ w) x! e9 N/ G# o
- mainAction();) }% S- P- a3 p
- if (digitalRead(0)){
) V( n& r# e/ r) M4 k - ESP.deepSleep(0);
, D) V2 g7 v3 q6 J3 \ f - } else {3 ^; J, h p/ r% ~- n2 y
- server.begin();0 R: ~- x* D1 f( [$ q3 u
- }
4 _" u0 p8 R4 _ - }
1 y5 |9 U! M. v. [2 K# u4 m - void loop() {
' c/ Y2 `( L% d' g# ?! B - server.handleClient();
% Z q4 U' d( s6 p - delay(1);( K+ e+ }3 \8 _$ r) \5 c% d3 f E
- }
' F5 r; f6 _# @, _7 _! X* E - String doGet(String url){. e3 }; W) z, N" \0 b6 L
- if ((WiFiMulti.run() == WL_CONNECTED)) {
7 g1 q, Q3 a9 ^5 U - HTTPClient http;
3 e I0 S* Z2 U; i - Serial.println("[HTTP] begin...");% p6 o. ?9 x% `0 Z' P1 y2 Z, q
- if (url.startsWith("https")) {/ M$ I8 I) P- e- c: ?9 g
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 n, J: ~. y+ t$ k8 p3 V- Q
- } else {
% d6 j- X; J1 N" c' Q - http.begin(url); V. t! t" j! P( I1 k( I
- }
5 H) N* m$ _. J# |; v9 ~ - Serial.println("[HTTP] GET...");2 Q. i& e2 t0 a, W( Z5 o1 _( r
- int httpCode = http.GET();
+ q- e- _# D7 {* M - if (httpCode > 0) {
0 h4 E2 B* c7 {$ M, u6 f, I - Serial.printf("[HTTP] code: %d\n", httpCode);" ]# d) Z# E$ @" u) J3 r9 X
- if (httpCode == HTTP_CODE_OK) {& k1 E: N+ i" p$ E
- String payload = http.getString();- k) x" z/ M& M, |4 K+ g
- Serial.println(payload);9 K/ a4 {9 S, D! [
- Serial.print("\r\n");
9 H* u) n% T, p& c2 m$ {$ U - return payload;- |3 F+ s4 U4 {0 K$ y
- }
* H; G5 K9 x, B, b - } else {
9 N" U6 W' W* f" e4 c+ B3 [) W - Serial.printf("[HTTP] GET... failed, error: %s\n",1 q! z7 p# O3 J8 V& ?/ s9 t, }* I
- http.errorToString(httpCode).c_str());5 N4 \0 g, @7 h" p1 G9 @$ H" p
- }
9 w/ g1 N( `8 s+ G A, ]/ h - http.end();
0 s+ L3 |- M$ K0 h3 ` - return "";5 S$ k# u; q+ C) {1 }
- }
0 e" B T. }/ b5 I - }1 i9 W$ c; Q4 ^; O, V% S
- void mainAction() {. S! [1 ]! k( C- _) _
- // 发送请求$ k7 w/ C3 O1 {, `
- doGet("http://google.cn");
8 o$ Y8 |. C3 x2 b, K - }
5 Z" }/ w+ y+ F8 M7 S6 E& {
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