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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)
* \* F- O2 r) A0 E3 p- #include <ESP8266HTTPClient.h>
' _8 c$ d, o0 E - #include <ESP8266WiFi.h>
2 |4 K6 `& B8 q, g - #include <ESP8266WiFiMulti.h>
0 }" \/ x/ _; x - #include <ESP8266WebServer.h>9 ?; Z2 p0 m/ ]' U- ~9 T
- #include <arduino.h>6 o. Y: Z5 P7 _6 v3 }
- ESP8266WiFiMulti WiFiMulti;
) {1 I9 q" h4 w. r' ~ - ESP8266WebServer server(80);
0 T9 O1 @/ s# v4 l# Z0 F5 {: z - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 W, y$ x- U/ R4 L% [" I/ T - ADC_MODE(ADC_VCC);
) Y- S+ j3 h) l/ t3 j% @7 k- x - void setup() {/ a+ R, L7 Q- O) V
- Serial.begin(115200);' `$ s. I4 g7 ~; {4 e3 J0 x
- Serial.print("\r\n\n");
; @0 ]5 I' S+ v0 d - pinMode(2,OUTPUT);
/ ~& u" b; p5 ` - // WIFI
( l) O6 J/ b: v2 u - WiFi.mode(WIFI_STA);
' ^2 ?& a! }) {/ S3 R - WiFi.hostname("Sparkle");
1 k4 p5 P* E4 o/ ~" @. i# D - WiFiMulti.addAP("wifi ssid", "wifi password");
6 s0 g! k5 d Y' u. D( T4 M0 y+ e - int tryNum = 15;! N4 y4 |2 H& l7 ]
- Serial.print("Connect WiFi");
( Q m% S, H3 u6 F - while (WiFiMulti.run() != WL_CONNECTED) {
5 R8 l+ K4 i5 r8 a- _ - digitalWrite(2,0);
4 \" h; K" h7 c% F' ` - delay(200);# C7 J4 ^% k9 t" F! ^/ a( g
- digitalWrite(2,1);
) \9 V/ ~2 z7 }8 K - delay(300);
2 L1 h4 O9 X: y% p* s7 Y - Serial.print("."); z( ?- g9 i; l6 _% o4 w
- tryNum--; S- \9 k9 u( [: n; [
- if (tryNum == 0) {6 [. Q% \ f- K1 Z+ u7 k1 g& M# n
- // 1min8 x% a4 o( y* J' f9 G# S/ j! g
- // ESP.deepSleep(60e6);
1 `; T S8 W; p/ x9 \$ f - ESP.deepSleep(0);2 X" c, E# M" I5 H# A% d' g
- }. h# @% {) J) G5 l) b( l5 ?- u5 \- s
- }
* g1 @7 L# `9 I/ {7 B8 s; v3 d - Serial.print("\r\n");
4 ]% j; r( ^+ C, O9 l" `9 M! c - digitalWrite(2,1);* k8 f/ N* v" e; `! y3 x
- Serial.print("IP address : ");
3 m$ u6 n2 e8 k - Serial.println(WiFi.localIP());9 B" J' }2 X. @
- server.on("/", HTTP_GET, [](){% _8 A( [" Y- W+ `# W! F
- server.sendHeader("Connection", "close");( }: }9 I3 [3 G- z1 R. B
- server.send(200, "text/html", serverIndex);
9 E% H( i* W) O* x( B; i; @ - });) i5 x6 \6 H, Q( }# Q. _
- server.on("/update", HTTP_POST, [](){9 r7 c/ e8 y/ T9 J
- server.sendHeader("Connection", "close");
7 x, b6 E/ K" E+ J6 u- u7 t1 ^9 T - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' \3 z8 g: v3 T- Z% { - ESP.restart();# E' I1 @5 O! @7 ^ S( z# ]$ m
- },[](){( A3 a4 M0 G2 L$ V# U& j4 W S- q4 k2 X8 |
- HTTPUpload& upload = server.upload();
, t5 I, D7 Q2 f) _% v - if(upload.status == UPLOAD_FILE_START){
: L% D0 j. |% K( @9 g3 s1 w - Serial.setDebugOutput(true);
7 E% o' P/ b# v - Serial.printf("Update: %s\n", upload.filename.c_str());
; W2 z+ S" L6 J- x6 d i - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: e' {! g' [* `: S$ Z - if(!Update.begin(maxSketchSpace)){
' p/ s4 e! [6 s1 x$ a - Update.printError(Serial);8 Z. r, d: O% O/ E
- }0 I- c; i. ^; h1 o& `
- } else if(upload.status == UPLOAD_FILE_WRITE){
8 Z9 S1 l7 k$ U6 a& M7 h - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* H1 \3 [: r6 E5 O% A' E
- Update.printError(Serial);
' @6 b1 j$ I! e' a% {# o; s - }
; j1 Y% V& }: b9 W1 Y+ X - } else if(upload.status == UPLOAD_FILE_END){
' Y7 q. R3 R5 t, A' C2 c - if(Update.end(true)){
* {" I& s0 @ N: b g - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ F" p& ` N9 E6 U) o
- } else {. ]9 i! q0 H+ O' y9 D0 x
- Update.printError(Serial);% c- o( {% a0 w* z( L- t
- }1 F* _- [# Y6 _$ H C7 e0 J
- Serial.setDebugOutput(false);4 Y) ]0 F8 _, a3 O# U. c
- }
: R: @2 t/ V4 a" N* _+ R' { - yield();( m; R: J2 Q, K( K% n* v$ ^
- });
3 L* b" E3 s* h& P5 h0 O - 2 U% s7 W( D2 e7 a: Q
- digitalWrite(2,0);; T4 U( Y3 ?& Q; L2 ]& q+ X4 \
- mainAction();
' P( V o# K8 f4 H$ I6 H - if (digitalRead(0)){
9 W! H) f# T H! _ - ESP.deepSleep(0);9 B* [: O3 k- ~
- } else {
$ q N1 m& z) H - server.begin();+ [1 K+ @7 C5 ^. V8 @" W; a, R
- }
; p' n* j: }, H - }
! E/ h" h. s3 I2 N - void loop() {
& Q9 B. T: i+ I# n - server.handleClient();
; U8 `& Y, m; q# O' O4 F0 b" ] - delay(1);
3 n) |0 X0 R2 _- |; U* Z - }
2 m1 e) w! [6 J; f# e - String doGet(String url){5 w- D- R' v; Z- v" I* F
- if ((WiFiMulti.run() == WL_CONNECTED)) {5 o! p4 e" K* s, U f3 m* r
- HTTPClient http;- }4 u! j( G6 K9 l1 U
- Serial.println("[HTTP] begin...");
; G7 `! R3 B8 H6 @, C% B - if (url.startsWith("https")) {
9 y( I* V+ K8 M$ o- A - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- n; N) d( @! ~) M
- } else {
# m7 y: [5 L# O8 H - http.begin(url);! Q* T9 E. v3 I! q, M' q; f% `
- }
$ ~& F3 g2 n$ x5 Q - Serial.println("[HTTP] GET...");; @& `/ Z2 i3 U1 W2 P: A
- int httpCode = http.GET();
6 Y; n4 H. G2 e$ r' z" b - if (httpCode > 0) {; c2 z q! ?! y. v6 q; F3 \" Q
- Serial.printf("[HTTP] code: %d\n", httpCode);8 Q# ^3 O8 u- s/ s3 J
- if (httpCode == HTTP_CODE_OK) {, t4 N' C* C6 v2 _: H* A
- String payload = http.getString();: ?% f, x0 D; N5 j
- Serial.println(payload);
3 s. w ?$ A+ U. @; I - Serial.print("\r\n");
4 \& D2 b: ]+ R& Y6 s, m - return payload;
b5 l* A v3 \! S" W - }
4 b; k7 ~0 F, s2 F0 g+ J. n - } else {
3 h2 ]9 F, \9 o- m! L - Serial.printf("[HTTP] GET... failed, error: %s\n",, n/ i/ m9 p- v( i, ~! o c
- http.errorToString(httpCode).c_str());6 F4 W$ Z8 @2 `7 w" {6 [; H: e
- }
4 r- o8 g- |, e I$ \/ n, W9 ~ - http.end();
' J( U) C+ x8 S5 ^; [5 L - return "";' T/ R3 c% F' e
- }
) O/ l# `! b) m% H! ?& I - }) a# I \' T' X
- void mainAction() {
' |. |" X3 C' v2 n B% y& \9 d - // 发送请求
7 z e }% M6 T- g - doGet("http://google.cn");8 d# |4 d$ b/ M6 t2 H
- }
8 P& S% Z" C6 m
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