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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 w: w1 J; N; A0 E' g- #include <ESP8266HTTPClient.h>( q" U3 m( h0 ]7 W; V9 u; ~ k# u
- #include <ESP8266WiFi.h>; ]7 B, z$ O9 V( \0 I! t
- #include <ESP8266WiFiMulti.h>
5 p% }5 w. e, ^" ? - #include <ESP8266WebServer.h>0 P3 k9 B( ~- L+ C" Q
- #include <arduino.h>0 y6 u& q6 d* u+ \% X
- ESP8266WiFiMulti WiFiMulti;
+ Q& P1 x4 w& Y% a" a. k, A - ESP8266WebServer server(80);/ }, q' g, a, c% F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; e( U( F) ?! Q) U0 ?6 s0 h
- ADC_MODE(ADC_VCC);0 C V6 v" h( _ e' l! B' b
- void setup() {
# E3 h2 ?+ ?+ m - Serial.begin(115200);
: v7 l' W7 p5 h) q3 N - Serial.print("\r\n\n");$ t# o8 m# o* }, r- h
- pinMode(2,OUTPUT);% a- b& L5 W5 l" R
- // WIFI
1 [" Q/ W7 u" M' o - WiFi.mode(WIFI_STA);
1 Z v* P: d5 b2 c" V3 x" P1 T( v0 c% w - WiFi.hostname("Sparkle");
/ m* v* h6 d j$ t% r, ?! Z - WiFiMulti.addAP("wifi ssid", "wifi password");* k$ w* l/ L! j6 J
- int tryNum = 15;2 j' [4 X7 ~8 z" z
- Serial.print("Connect WiFi");
1 M, I# u, J" x - while (WiFiMulti.run() != WL_CONNECTED) {* j' ]4 F! q1 M! c0 t% x
- digitalWrite(2,0);
Z8 z, f; I* Z! l- G: L - delay(200);! F! C' j3 D! ]+ Y" w) s3 o
- digitalWrite(2,1);
2 d2 W; R- H4 O6 L# a! c. ^ - delay(300);: z# J! L: p' Q( P `0 H: T
- Serial.print(".");
/ W# \4 Z/ J/ c f- G' c! h - tryNum--;
: i. \8 w( {- _$ u; S8 }) W& |8 k9 r - if (tryNum == 0) {
/ B3 d) L# `- U, z3 E q - // 1min) u) b, n! J8 n, S7 O4 h8 [9 y* _
- // ESP.deepSleep(60e6);7 m4 J4 `1 U2 ]4 c+ @
- ESP.deepSleep(0);
/ I: o& h" F0 ~- F& N/ j - }
. j" U) X/ \$ f9 i3 ~, @- Y% x4 f - }4 s# ~% ^, _/ p u N3 `4 [1 a
- Serial.print("\r\n");
4 K6 T, i; Y9 T+ e - digitalWrite(2,1);1 @9 s, v0 K/ Q1 w& \2 u6 E
- Serial.print("IP address : ");
+ e! O/ f1 o8 v% ^; f) Z# |& o, ~ - Serial.println(WiFi.localIP());
" C8 x6 R4 R, @3 I3 [$ m. I+ l7 B - server.on("/", HTTP_GET, [](){
5 c/ {3 _+ ]% W4 }6 L& Z - server.sendHeader("Connection", "close");1 ~- ?( ^3 V, |" b+ A$ o4 [; {0 q
- server.send(200, "text/html", serverIndex);9 C- t' R) G3 y0 h5 z8 P3 }% {% p
- });" f; E R) ^0 V2 C1 q& c" m
- server.on("/update", HTTP_POST, [](){" z( O1 W7 ?4 Z: w- c
- server.sendHeader("Connection", "close");% M& `: ]% V2 g4 \7 {$ O, I( Q q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 n/ `* A7 i, z0 g. P, I
- ESP.restart();0 P" K+ {9 Q9 @- u
- },[](){
1 t' e# w E g2 G+ u+ Q - HTTPUpload& upload = server.upload();
- I8 E) }7 U/ z; n& h- C l' h% | - if(upload.status == UPLOAD_FILE_START){
8 O8 U* g+ M6 k% n0 E# V/ J, s5 V - Serial.setDebugOutput(true);
+ X8 g: |' g3 D5 M5 G# J1 T% o, ^ - Serial.printf("Update: %s\n", upload.filename.c_str());( {. N# ?. A5 r3 \7 ]1 h+ w0 }4 l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ a( r q$ U. F% s; H7 U0 x+ i - if(!Update.begin(maxSketchSpace)){( A' a% j1 C. [) k
- Update.printError(Serial);! o" m5 M+ z5 ~4 K, V9 c2 y- a
- }' W. o4 s0 J- P4 K" \( j% q/ n8 a
- } else if(upload.status == UPLOAD_FILE_WRITE){: W( j/ H. J; B F6 U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 @+ ~' k. y# j% { R8 H
- Update.printError(Serial);
" W; _+ B# n' X) | - }6 P( y& ` F R) x7 j
- } else if(upload.status == UPLOAD_FILE_END){
) i# m- A% Y, h: U: R3 y& I$ { - if(Update.end(true)){
$ a: i3 I. ^" \. n - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: @$ J! j% G5 O5 M& K/ |7 V
- } else {7 N) |* d/ U2 J, i
- Update.printError(Serial);
+ ~8 q4 f5 F- H$ Y" ] - }
6 s7 F# }% g1 @2 }! r - Serial.setDebugOutput(false);; P8 ]' F$ T* u
- }
Y' T" b4 j$ s - yield();3 D" L! ]. ?8 w2 S0 y2 O
- }); N' S7 U0 W- K+ b. w. F. x
- $ R/ z$ O5 ]/ Q& |3 M) K
- digitalWrite(2,0);, v7 u3 Y3 x4 p2 m. ~/ {9 H
- mainAction();2 t6 i4 B8 Q5 n, O/ W, O, M6 {
- if (digitalRead(0)){. [( t2 u, r& x' M( t; ^
- ESP.deepSleep(0);
' p( j6 }+ }$ B H - } else {) Y+ I& L, t/ G- | l4 D% X4 s5 T
- server.begin();
" v# _" w- h* w1 j3 ~' y - }2 A) F/ Y9 h3 B G( s
- }
5 d* f% Y! b! p7 y- ~7 A) J - void loop() {2 g, z0 x* v4 U* {, F
- server.handleClient();
& D' G' ~: S, }) \3 ]% V0 [! I - delay(1);
: C) P+ Z( e/ m5 P - }
/ X: e9 H# V1 Z& P! U - String doGet(String url){; R/ w* @6 m$ j% t# D" ^2 ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {4 |: @" ^/ b! n: l h5 p1 k8 Q
- HTTPClient http;
* U. x1 m- G$ Q1 _; q5 x - Serial.println("[HTTP] begin..."); \! ]6 q3 z! ~& \- ~. e
- if (url.startsWith("https")) {
2 h, B5 X7 y7 o/ z/ |+ A - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 I8 h# k5 K: J; I9 {% L" S/ c1 [
- } else {& O+ v% A/ e" S2 e$ K- S g) T
- http.begin(url);: K, I0 v- p9 t3 D: [
- }
8 O. Z( U! o e' |- } - Serial.println("[HTTP] GET...");2 ~* E2 e- a/ b, Z* h
- int httpCode = http.GET();8 y. [% S0 f5 n1 v7 {
- if (httpCode > 0) {- v! C" D* [1 a, E( S9 C6 w
- Serial.printf("[HTTP] code: %d\n", httpCode);
7 t& I9 M$ W' u0 v( _4 f - if (httpCode == HTTP_CODE_OK) {7 f' R l% Z7 b, h! b/ G$ q
- String payload = http.getString();
1 T W+ A6 g* m8 W - Serial.println(payload);4 ^+ n* A3 N1 D; l7 O
- Serial.print("\r\n");3 D, _: H3 x- D( P5 n( v
- return payload;
- V3 Z- F" ]" y# Z - }
4 r" a5 j8 e7 @* o6 ~; C/ \ - } else {( O8 w- Q/ S3 u) c% F3 U3 P9 r
- Serial.printf("[HTTP] GET... failed, error: %s\n",
# v ~. z/ h4 q; L& S - http.errorToString(httpCode).c_str());
& C9 p4 Z3 K6 D/ S. V - } u0 G' W# d X6 P
- http.end();& T. d5 Q4 m3 r2 c3 S$ H
- return "";
% Z$ `+ v3 ^5 `- I - }
: {: p" W, t) S. S( m) t - }
% y* @0 j9 t- j) E - void mainAction() {8 p5 z" Q: C: g2 I+ K4 B. [
- // 发送请求. e) a9 [1 ?, i* ~! b, [- _
- doGet("http://google.cn");# x4 G' I4 R3 U& `
- }8 V. J: ^0 M2 B! ~' O* L
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