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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)
E' x0 x. g3 Y" b- #include <ESP8266HTTPClient.h>3 c, a0 O. k( q3 k# F7 u
- #include <ESP8266WiFi.h>9 p, q0 w6 H% T3 N' p* [. o
- #include <ESP8266WiFiMulti.h>) }$ M, }4 Q. v- E
- #include <ESP8266WebServer.h>
! _) S$ t$ |- R0 ? - #include <arduino.h>0 R4 ?; t; E+ F( d
- ESP8266WiFiMulti WiFiMulti;6 z6 X7 W6 d0 K% Z9 m
- ESP8266WebServer server(80);
2 k. d6 m$ z# c/ E4 a ^7 u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 V0 |8 R) I- w - ADC_MODE(ADC_VCC); R! P/ l9 U! y9 m1 `# ~, w4 u" Y
- void setup() {
# l, }& i9 r2 h* l& E% D - Serial.begin(115200);
, S+ e+ ?3 r0 L' z% ^; Q - Serial.print("\r\n\n");8 R! l' W3 `7 S( U$ o! R- p. }7 i8 b
- pinMode(2,OUTPUT);
9 [: L) b5 Q2 h3 c! l* D4 w4 c7 V - // WIFI/ j* _+ h% ]. E. ]4 w# E
- WiFi.mode(WIFI_STA);, z$ p! c! C$ z$ D5 x- @
- WiFi.hostname("Sparkle");
( Z' B7 l E5 [/ k" g; _ - WiFiMulti.addAP("wifi ssid", "wifi password");# Z7 k% c$ r# E4 a4 t) K
- int tryNum = 15;
# d0 P# [" A0 ]4 S! Q - Serial.print("Connect WiFi");
; I4 Q" i, r& X( q7 P6 B* c - while (WiFiMulti.run() != WL_CONNECTED) {
& V L4 R" l* \: P* U - digitalWrite(2,0);
: D# F* I. v, | - delay(200);
% F5 _; G5 S6 R - digitalWrite(2,1);
! v3 Q" {( Y3 q: [0 { - delay(300);
" A! |3 ` ?3 ]: v0 | - Serial.print(".");
: T' e& A5 h* J5 f - tryNum--;
# `2 j& ~& W& W1 L8 z - if (tryNum == 0) { I* T# e3 r* @2 R
- // 1min0 S; B0 [# ]' u2 Z% L8 U
- // ESP.deepSleep(60e6);
0 `' h2 H$ `* w# j- k' d - ESP.deepSleep(0);+ J! B8 S, X& n# L$ ?8 E
- }
) U" H# V2 P+ o% j1 v( \& X - }5 n: J, h* M) v! q3 v0 Z; }6 T
- Serial.print("\r\n");; D* e, F; x+ |. y
- digitalWrite(2,1);# O7 z7 N$ h7 n
- Serial.print("IP address : ");
V. ]" }* R0 x' O* c! R) E - Serial.println(WiFi.localIP());( M6 P% c0 w& s5 o; f7 r
- server.on("/", HTTP_GET, [](){
% ^2 g# _9 c! c2 `9 ~$ l - server.sendHeader("Connection", "close");8 a# ?' f4 T9 w/ m& |; ^
- server.send(200, "text/html", serverIndex);
% D2 G3 ?# m# R( l# `7 [ T$ a - });
" A1 W, w8 Q( {" l5 X9 J - server.on("/update", HTTP_POST, [](){
' C5 n; K8 }! }7 Y9 I, Y - server.sendHeader("Connection", "close");
, I4 r2 s6 A$ v) x* i! k - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 O; e1 n' N# [( f# Z% g* K
- ESP.restart();
( g4 I2 i! _' c, l1 L. | - },[](){
$ l" P! X1 m! r+ Y - HTTPUpload& upload = server.upload();
, a4 L/ p' q9 [ - if(upload.status == UPLOAD_FILE_START){
. }% V- f z2 M- a5 m2 \# I - Serial.setDebugOutput(true);; v/ ? s, T& ?: c, w2 {
- Serial.printf("Update: %s\n", upload.filename.c_str());3 U+ Y! G: y" T+ a ~& Z; C, _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ ~: o+ ^# b& p: u! `9 J* x7 a - if(!Update.begin(maxSketchSpace)){& a+ C% |: e# Z9 S% q
- Update.printError(Serial);/ L2 B5 ^1 w5 q8 @0 p
- }1 @# k$ X3 }0 |# T" f
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 L7 C* h, g. n3 d+ ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: S4 ?, J7 c1 X a, Q( m
- Update.printError(Serial);
0 g. `' I# z& O# t0 |+ ] - }
% O# s# h. v! Z6 e% w* L- S - } else if(upload.status == UPLOAD_FILE_END){& X0 U6 V+ j9 n, V8 ~# ?
- if(Update.end(true)){; a( l e" S( z0 h8 A1 I8 T
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) p$ O. c6 w) G" J C2 f - } else {% A8 E% R( |; W% a; c3 t. e
- Update.printError(Serial);- ~" T9 N; Y3 u3 k( t I" O. [
- }
8 J* N: b. i5 J - Serial.setDebugOutput(false); ]" H& V; Q& |7 u7 H8 p5 N
- }
* J* }, O# U) O5 z* B4 A: z - yield();
- a# q f" y+ z- r- Q - });# Q! d: @9 ]) [! G) X5 G5 M. w, O/ n
-
! b. b) }6 w0 v( z- }) D u - digitalWrite(2,0);) K1 N/ X6 w" t' c
- mainAction();
9 m4 ^. A% O% W9 v5 R$ O; c - if (digitalRead(0)){4 \/ G3 a& ?0 |& M1 P
- ESP.deepSleep(0);4 \- U/ Y6 [* P Q: v! @
- } else {
" K+ p2 G9 D1 [ - server.begin();
, J; A" J. r0 E: ?9 H0 \2 ~: g: L - }+ k& G V3 _3 W( }
- }8 d9 z. `. ^% E' e, a! t: h8 P
- void loop() {
: _6 Y5 G# {/ e4 ~. l& A - server.handleClient();) B# h4 q% l# y) h8 h3 p* x% R
- delay(1);8 f' h, q, P5 `& e
- }
3 ]$ Z* c) g2 O0 w, G2 d - String doGet(String url){
- w9 W: k2 c e* u% a; s- e7 E - if ((WiFiMulti.run() == WL_CONNECTED)) {$ j Q, E! S! l- ~* ?
- HTTPClient http;8 X, i5 }6 w1 I$ n
- Serial.println("[HTTP] begin...");
" t! N4 |4 E/ Z$ }, `0 r8 f - if (url.startsWith("https")) {* u/ L0 i" z6 f9 D" @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 T. F2 U5 | s, M7 r - } else {
& j! G+ d( s, h! f% Z! \8 y, k! I - http.begin(url);
$ Q. _6 f2 [, v K0 t - }
& c9 T5 x6 F( i+ y - Serial.println("[HTTP] GET...");
8 g" \. B/ N# p9 h& a3 s - int httpCode = http.GET();
: a# `. d( D3 r2 O n - if (httpCode > 0) {
- J' a3 S" T5 C1 A1 g - Serial.printf("[HTTP] code: %d\n", httpCode);
& r2 i* l j5 ] - if (httpCode == HTTP_CODE_OK) {' I9 y# g4 ?8 {
- String payload = http.getString();
4 `: m* y5 _4 M1 o8 @ - Serial.println(payload);$ l8 q! W' X/ q0 r/ O
- Serial.print("\r\n");
{) G1 ?( X- s* X - return payload;
$ b, |+ |* z/ q& u, K7 I. X - }' o0 t/ c. }. l& q: C
- } else {: o* N+ T8 Q+ t2 F. K
- Serial.printf("[HTTP] GET... failed, error: %s\n",
* w8 I1 r9 M+ u! f+ R/ U - http.errorToString(httpCode).c_str());
3 T5 s b1 v& N; m9 e9 |9 T - }* \: k( P8 r* N% C/ H4 f2 c! f
- http.end();
; \1 s' K6 \: t0 f0 t - return "";; o. V+ T1 ^( z% F% b% S" _5 ?
- }
7 O0 `8 c4 O: h! M) s - }
4 A3 \+ e0 e; j1 p - void mainAction() {$ G( y- H' \! Y7 k( T7 i
- // 发送请求* C% Q) M3 O6 k1 E; `
- doGet("http://google.cn");+ K$ ]9 z1 p K: {& S. W
- }+ r+ U) s# G4 k8 A& p A$ b
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