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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)
6 o" L" _1 u- W6 Y" u- #include <ESP8266HTTPClient.h>- E0 B; a: @0 h0 F# @8 w9 w/ c
- #include <ESP8266WiFi.h> O3 ]9 P4 Q7 c' u0 q8 h U
- #include <ESP8266WiFiMulti.h>$ r" D* I' Z% H7 J# R
- #include <ESP8266WebServer.h>
. n! j8 g/ C) s$ U7 n8 \( o - #include <arduino.h>. j. P$ v* ~- c3 T
- ESP8266WiFiMulti WiFiMulti;
6 i7 I8 ]. N3 W: h G4 b9 P1 g - ESP8266WebServer server(80);; }; W, D; j/ H) M$ J8 i7 N, G
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ _' M5 `) K$ Z7 y% p& I - ADC_MODE(ADC_VCC);
( N5 `) s* K4 X4 x/ N$ i2 I5 _ q7 ^ - void setup() {* Y$ U" J0 @5 o* L) |7 I
- Serial.begin(115200);, W! @( R e( b
- Serial.print("\r\n\n");- p; Z1 u" v/ \2 b& ?. e
- pinMode(2,OUTPUT);
2 {. `4 Z5 U' E( Q; V - // WIFI. F2 k" n4 ?- X
- WiFi.mode(WIFI_STA);+ K l6 t# Y5 y0 e, M, U
- WiFi.hostname("Sparkle");
' z( r7 J$ E$ L6 O; Z; F& Z# M - WiFiMulti.addAP("wifi ssid", "wifi password");2 z/ S" ^; l8 u# h
- int tryNum = 15;
( x5 ^& B& t$ F. J& M - Serial.print("Connect WiFi");
7 J# k6 f7 ?# v+ U5 y% l, E9 b - while (WiFiMulti.run() != WL_CONNECTED) {
. H) E) M! l# d; w3 r3 n4 Q - digitalWrite(2,0);
8 X- p/ P. I. s2 A# K! L ^ - delay(200);- r9 j/ n' I+ K2 u
- digitalWrite(2,1);
2 K9 h( s5 ]& i; e - delay(300);
0 `+ l8 f( A: w; M - Serial.print(".");( s) J- I9 p3 D Y; `# c
- tryNum--;
# ]5 H* x! a! v9 A - if (tryNum == 0) {( \: W5 B4 w" X+ C4 i9 R' H, {( i
- // 1min
& p+ J" _- y D2 x - // ESP.deepSleep(60e6);
/ f6 D) w& b% R. n- @ - ESP.deepSleep(0);$ [" G2 R- c: B6 x2 i
- }
" F7 p6 Q& i5 w9 ]- x4 d+ ^ - }, w" y( x# F4 V2 ]' {" r# U8 R
- Serial.print("\r\n");
; ~3 V4 s8 ?: Q2 \5 M0 X# T( t - digitalWrite(2,1); Q7 d) p5 E. C9 \7 A
- Serial.print("IP address : ");
: x8 Q: Y' @' T! p) ? - Serial.println(WiFi.localIP());
6 g% [$ j" }" c: H - server.on("/", HTTP_GET, [](){
7 R0 \1 T* F) y4 ?% I - server.sendHeader("Connection", "close");
5 [6 R& R' L% v1 B: b# V - server.send(200, "text/html", serverIndex);( ^( c# C5 H" @! q3 ?- d
- });
) K- X( q, L9 Q' [ - server.on("/update", HTTP_POST, [](){, }5 N7 M& q) V2 v* j
- server.sendHeader("Connection", "close");. m- h& |1 u! Q5 R+ M" B
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
; f0 F6 @, X8 X% O - ESP.restart();" J, O: @: a1 x0 s4 {# [
- },[](){, t- a, I' t+ X6 \
- HTTPUpload& upload = server.upload();# X f8 e6 n+ T: v z
- if(upload.status == UPLOAD_FILE_START){5 c+ X* @; |2 E, [# u+ f
- Serial.setDebugOutput(true);. w. z7 f5 b+ ?& M4 k- Y
- Serial.printf("Update: %s\n", upload.filename.c_str());
; x" b+ V5 N' N/ y( r" c - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 S K$ f6 V4 {* m. Q* r
- if(!Update.begin(maxSketchSpace)){; h% ~$ m9 i5 _
- Update.printError(Serial);
9 d& a6 R( e) T& P- j; v3 F& o: c - }5 o8 O9 E( R0 K- Z8 w
- } else if(upload.status == UPLOAD_FILE_WRITE){
1 F% e5 V4 H: B1 x* p$ ^ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, z% P# Z4 P, ?8 ? - Update.printError(Serial);. S5 X( k' ~$ x5 Q6 W2 `8 u8 p1 T
- }2 A$ c8 r& u. y# p( h) X
- } else if(upload.status == UPLOAD_FILE_END){
8 X4 o9 M2 ?1 T* H1 U% ` - if(Update.end(true)){
3 R* y) m; a+ a1 w1 }1 U& ] F+ ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: b6 ^( T2 N4 X4 K2 o
- } else {
/ a. S7 F: S1 j B - Update.printError(Serial);- e4 a. j! o' n4 `! h9 a
- }2 L% {6 L- j: \# J, J u
- Serial.setDebugOutput(false);
+ a3 ]3 a1 B+ t) P, z) a5 a2 d - }
: Z( c+ ?1 V! m7 @ - yield();7 F. k9 A# Q, {, z0 U# P! U
- });8 k; n9 a) Z3 ]7 X4 z
- ( T! `4 C, {+ x5 b* D, a* o. |2 A
- digitalWrite(2,0);; |0 V* l* Y2 C' a- M
- mainAction();* E& B' B8 Z/ b6 y# w. `) E$ @+ b# P$ X
- if (digitalRead(0)){
/ l Z! c5 V2 N# |$ V- D4 w4 l - ESP.deepSleep(0);
+ U8 A, o; R$ x$ F6 x" a - } else {
- N W# U. s3 h& i5 d+ V1 F' ~ - server.begin();
: O$ F# p, n k - }% x- l, j: _3 T5 v, f
- }
$ O7 y# J: r0 `! z: h0 }, x - void loop() {3 f# b' n+ L5 C9 ]4 f3 \# B
- server.handleClient();" a/ Q) S9 j5 p/ M3 l% ]
- delay(1);
9 a4 y y8 b# Q7 ~6 N9 X1 K - }
, c& h& t9 ^8 ]; j - String doGet(String url){( ?4 J6 k3 v# ]4 w4 I( n+ i2 L: W
- if ((WiFiMulti.run() == WL_CONNECTED)) {6 h, N9 v2 B( P' A$ t+ ^
- HTTPClient http;/ l$ P' e1 z7 }9 w1 Y
- Serial.println("[HTTP] begin...");8 I& u" m) q0 y9 T/ u
- if (url.startsWith("https")) {" M+ O) R+ W: R6 o3 M: Y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 v' B. w4 \: k4 M - } else {9 L1 c( \; w; Q2 A" B# k
- http.begin(url);6 N8 E; K( f: D8 t
- }
1 T$ [" p# @# G( q+ V - Serial.println("[HTTP] GET...");: O t( a& t6 E* T+ n4 B6 E
- int httpCode = http.GET();
, a- r+ H- [) z0 P" M - if (httpCode > 0) {
\( b: w9 ]9 \, |! z! W+ Z0 j - Serial.printf("[HTTP] code: %d\n", httpCode);
9 v) P& d: k9 f+ o - if (httpCode == HTTP_CODE_OK) {
4 \; u6 S; u' ]& h: \ - String payload = http.getString();
+ v$ G2 X9 j& t" y2 W: S$ ? - Serial.println(payload);/ [6 A# h$ J6 `3 f/ l: M0 k
- Serial.print("\r\n");) ~7 g2 h0 @% a% ~' Q/ u+ i
- return payload;
7 l' h, Y9 `# E+ V5 H' | - }
0 L- J0 r+ U( y! T - } else {
: `# _3 q, }7 k6 i, M/ ]* b8 o - Serial.printf("[HTTP] GET... failed, error: %s\n",+ ^" g* z1 {* d; f
- http.errorToString(httpCode).c_str());7 V' G8 I7 ^$ S2 U( U, H
- }
6 e- g! b* {3 c! @$ a+ }9 K2 H, ] - http.end();/ E( |* d5 u6 w- _. q
- return "";9 n8 A4 O0 [' z2 k$ W& K& g
- }
8 ?2 T3 _' F# |- X - }6 p, X! J% z6 @% L# S+ ]
- void mainAction() {% c) R2 u6 F+ m
- // 发送请求+ O6 P, z) ?8 L# X
- doGet("http://google.cn");
4 N" U! m& f9 T( j - }4 h1 | m5 c# i, U+ _* ~
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