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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)' A* s; a$ n+ t H
- #include <ESP8266HTTPClient.h>
" Z+ k7 P( }( `2 G2 {6 L# U9 ~5 g - #include <ESP8266WiFi.h>, r8 H$ Y& k- I' F& X; x3 T5 [
- #include <ESP8266WiFiMulti.h>3 X; J6 O& {/ s( S3 r
- #include <ESP8266WebServer.h>
' C' Q' D0 L' u7 U* K- x - #include <arduino.h>
% F2 z4 D# u) @5 A - ESP8266WiFiMulti WiFiMulti;
8 c G& _8 Z' D- B6 k; S - ESP8266WebServer server(80);: j. F; {5 ?; y" m3 q. `
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 M3 j( t4 V' e3 \. l# f - ADC_MODE(ADC_VCC);/ o+ U+ o0 E0 b5 v; d& V
- void setup() {
" b1 o3 e0 m! f - Serial.begin(115200);& N3 r- g) Z- r* S+ n: v1 ]
- Serial.print("\r\n\n");
- |; N. n6 o! l$ B9 w$ A - pinMode(2,OUTPUT);; ^( m# ~5 K* m: Z. x! X. L6 x
- // WIFI
" p$ C/ q; p7 |6 C" e& c' ^& ] - WiFi.mode(WIFI_STA);1 [3 T ~1 D% m9 y0 ?1 I
- WiFi.hostname("Sparkle");
0 n$ ]/ o1 g3 m( e: u( e - WiFiMulti.addAP("wifi ssid", "wifi password");. ~0 |1 | W+ a$ m
- int tryNum = 15;7 n: t. X/ }: a" }, Q6 w: Y
- Serial.print("Connect WiFi");# @* @9 d7 `( L, ^- d5 Y' e9 a
- while (WiFiMulti.run() != WL_CONNECTED) {
! F8 P! p6 h6 `& n# P - digitalWrite(2,0);- j1 |, \- I: [. y$ ]/ G
- delay(200);
. o5 B: k" Z! B/ G - digitalWrite(2,1);; s, |1 x6 a& c5 ^% t
- delay(300);3 c* F' M2 M) o5 I# J3 _2 V
- Serial.print(".");( Z6 Z+ p$ _7 q4 f7 x* F f% _( j
- tryNum--;
. k3 n f7 H b+ M- @* j: A - if (tryNum == 0) {6 o$ g7 H! A' ], w& c. X
- // 1min' K2 K# F1 I0 V/ J1 q' \
- // ESP.deepSleep(60e6);% s- ?6 y9 O* z/ C* a1 W8 `
- ESP.deepSleep(0);
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- }4 r! ^: V( p( b: u6 B
- Serial.print("\r\n");
6 p( A8 C% Z: k" w8 N4 E% H. b - digitalWrite(2,1);) g+ \& e5 ^3 W$ ~! S
- Serial.print("IP address : ");; q, y# ?6 M- a H
- Serial.println(WiFi.localIP());3 b' J: F# j" k: B
- server.on("/", HTTP_GET, [](){
`! U p! [* A9 _& M) q( ], d0 Y' U - server.sendHeader("Connection", "close");
, ]6 X3 ~- g: M" M - server.send(200, "text/html", serverIndex);
: l( a; o8 E2 e - });
3 m x2 G* Q; L( U - server.on("/update", HTTP_POST, [](){: p' J/ z! `! n5 i _' R
- server.sendHeader("Connection", "close");. q6 O s$ @6 n1 V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 q _. N. A$ `" j
- ESP.restart();* d. r( J2 f: t. Y3 T7 E6 j6 E
- },[](){
: m# ~2 f+ Z# I; A* c' O; z, a - HTTPUpload& upload = server.upload();
1 H t$ }% S! \5 f: k - if(upload.status == UPLOAD_FILE_START){
% C0 H. ~, Q9 }+ Y0 I( x - Serial.setDebugOutput(true);+ l+ ~9 |% X" }" L% A1 c8 `
- Serial.printf("Update: %s\n", upload.filename.c_str());) M0 W$ E8 i6 K1 M$ ^2 U
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ D! Y' B, L% [) E" t$ i: U8 q! M
- if(!Update.begin(maxSketchSpace)){ s& ?# E1 X2 W, n: A3 o& F/ k
- Update.printError(Serial);. N: a5 R( f2 k/ v+ k* S/ _1 e ^* Z
- }
1 C% r/ K- s r1 V0 P1 ^5 k - } else if(upload.status == UPLOAD_FILE_WRITE){ `# R0 S! I% e. s7 m: X
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, ~- E6 ~, B3 K$ k# t! f - Update.printError(Serial);
! s* V# ^ K. R7 C5 |: s! L9 d1 ^ - }# C( l% u! j* h9 O& Q
- } else if(upload.status == UPLOAD_FILE_END){; a8 N/ Y0 f+ Z: L ?
- if(Update.end(true)){
, Y) T5 k9 s& s7 H8 ?! N - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 C5 E3 {/ `$ a% d. ~8 f- t4 y - } else { G8 ^4 }- c5 }$ w
- Update.printError(Serial);
' H8 g4 w0 T4 I3 S - }# ~! C2 @* ~: d: {6 a$ I4 I( T
- Serial.setDebugOutput(false);1 D3 O' E- O, |: Z3 f2 H, i
- }& i2 v: d3 O4 S `; h( q( M5 j
- yield();
# H3 I5 Z6 e( g/ T: F4 M( ?5 s, f% O - });; U( e8 q, ?# I3 X E6 K8 m
- 5 ]+ z6 d# d9 [) e/ H b" P
- digitalWrite(2,0);! o& {% l7 q4 S
- mainAction();7 V1 }* Z) F" T) h& f
- if (digitalRead(0)){
3 t% u# `, a! Q0 z' @, Z- n. R4 a - ESP.deepSleep(0);
; C M# O2 [7 F: M - } else {
: ~. ?: e- i0 B. M - server.begin();* N% k5 D$ _3 `1 r1 |+ W- E
- }: c7 X1 x: F, ?
- }6 q6 Y/ ?, q4 D- ^# h5 o% C" t
- void loop() {; w9 M, k8 |& r2 \* v5 d4 | M
- server.handleClient();
) |# R2 i' M- m/ D - delay(1);
- E* h8 M$ |' [9 J- _ - }4 [& Y, \5 m% N. A+ a. ~" V
- String doGet(String url){
+ f$ Y+ r' _# ^ - if ((WiFiMulti.run() == WL_CONNECTED)) {* m: q3 W9 r% [
- HTTPClient http;
5 K( Z! l! u. D! l8 _5 u# ? - Serial.println("[HTTP] begin..."); Z1 I; F: {- s+ g9 b5 L
- if (url.startsWith("https")) {( v; h. O' v S& t
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
0 J8 z5 |# E3 p& h! c - } else {
+ o2 B! z" L$ I3 j - http.begin(url);. p6 D. e8 d, I: X8 c3 A: @
- }. @3 s; f# D# {
- Serial.println("[HTTP] GET...");. p+ q4 ~+ w& }6 d1 }3 [
- int httpCode = http.GET(); o' y" i! p0 h
- if (httpCode > 0) {* M" r: V0 s" P; t! i: _
- Serial.printf("[HTTP] code: %d\n", httpCode);
2 g, E6 E8 _% b2 |+ R! ? - if (httpCode == HTTP_CODE_OK) {
& P9 E* B$ Z* Y. B- o - String payload = http.getString();( l- z* n# Q5 X! g; Z; a
- Serial.println(payload);# G( a9 h7 A0 A% _
- Serial.print("\r\n");
0 b2 O0 ~6 Y$ x - return payload;8 q8 N7 \/ a4 V. v' G5 u- Y
- }4 t) q; l( \& x; L C8 Z9 z
- } else {! Z3 E4 O" V9 k5 J6 a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 d5 d0 o1 d6 z& f2 l9 q - http.errorToString(httpCode).c_str());8 O5 y/ T; K; J, a9 F
- }3 P& ~! w V8 f. T* T% N- d5 t
- http.end();& W) ~4 D' j) B M9 V
- return "";
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- }) d/ a) N4 F/ c( D) R% w, I
- void mainAction() {& J3 A9 f C) w7 ^
- // 发送请求, S$ U) p9 w9 A. S: g9 X$ _ J- B8 [
- doGet("http://google.cn");4 b: q6 L+ D7 M+ _" _
- }
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