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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)
- C1 Q% d. |# D4 N$ E- #include <ESP8266HTTPClient.h>
`0 a+ J3 J6 i& e- a- {7 @, k - #include <ESP8266WiFi.h>
+ q( o9 e" A' l4 ~ - #include <ESP8266WiFiMulti.h>, ~7 L+ H8 ?9 P( `: m& @
- #include <ESP8266WebServer.h>
( M* [5 }3 N5 z/ S1 \2 C - #include <arduino.h>/ e& Z6 `6 K1 Q) {, W6 z7 ]
- ESP8266WiFiMulti WiFiMulti;7 X) y4 A8 @( {/ y' y* ]9 z& i
- ESP8266WebServer server(80); Y6 ]; B5 g. n% V) c
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" w, K, q$ p# f/ w4 S( c: Y
- ADC_MODE(ADC_VCC);, N9 Q# B( z) F% b: N% P i$ j
- void setup() {
; w% h% |: t, W; z" f! ~4 |9 l9 C - Serial.begin(115200);
, Q h5 T% y6 p f$ d - Serial.print("\r\n\n");
% }- U) `+ R+ s/ ~6 p4 A1 u: x - pinMode(2,OUTPUT);+ M' d& W$ `" x( Y
- // WIFI
0 ?9 N x, m% {! P' Q) g# _ - WiFi.mode(WIFI_STA);. B. ^1 c r9 g+ o
- WiFi.hostname("Sparkle");% r s' h. g* I% }
- WiFiMulti.addAP("wifi ssid", "wifi password");
- U7 ^+ l9 u% y7 \ - int tryNum = 15;
. C n4 Q- |! v/ U, e9 k6 K - Serial.print("Connect WiFi");
, n( Y! `4 f6 W% \: p - while (WiFiMulti.run() != WL_CONNECTED) {9 w4 s: h' W, O4 ~1 L9 r
- digitalWrite(2,0);
+ k+ X$ ~& \% J - delay(200);; A" I" G+ ~5 @ R: \- [
- digitalWrite(2,1);
& o. q; P/ `' h' j# f4 Z - delay(300);8 [& G& H; A6 s% t
- Serial.print(".");4 {! V2 u' t) U* N
- tryNum--;
3 K% Y& A3 H: p& e+ ?) j; ] - if (tryNum == 0) {
( \ y8 d9 X9 S' i9 W5 c1 E - // 1min, E1 j+ o/ I0 q1 O
- // ESP.deepSleep(60e6);
t- B* f# V5 H) _& n - ESP.deepSleep(0);
, t7 H9 Y; F# m - }
+ w' b: T- |" c/ u) y4 C& f1 t - }
$ c/ O5 q! m4 W8 o6 q* y+ k2 N( _/ b - Serial.print("\r\n");
& M6 u* d: o- f8 K - digitalWrite(2,1);
' k) J" |7 [; U {3 H: h- O# y - Serial.print("IP address : ");
" ?4 v* d# z" E/ m$ ? - Serial.println(WiFi.localIP());- f( P* A: o4 o. {" A' B, F
- server.on("/", HTTP_GET, [](){" y4 R' o1 {- G4 a! y- B$ z
- server.sendHeader("Connection", "close");# \; A# ~0 w0 ~: i$ n4 Z1 L( {7 \
- server.send(200, "text/html", serverIndex);
2 d5 [6 B# ~7 o0 U9 F% \( P: B2 v0 b - });
2 Y' Y* q. `4 Y/ e7 U0 H8 \# c( B - server.on("/update", HTTP_POST, [](){
* G- T- X. W$ x8 I8 O3 I, ^4 Y - server.sendHeader("Connection", "close");% x' Q. L0 p N( B+ T+ Z T- U0 C
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
( k- ]9 h5 @; K - ESP.restart();7 `' B1 {& C- s- R+ k$ m- t) V
- },[](){
# k1 _, N* o2 b4 ?' t: w/ V - HTTPUpload& upload = server.upload();, f3 R) z9 s; `6 j7 v% P. A3 L
- if(upload.status == UPLOAD_FILE_START){
' b X& A) w' M( \. \( R - Serial.setDebugOutput(true);9 Q0 {. z$ ~; Q
- Serial.printf("Update: %s\n", upload.filename.c_str());
( X1 \0 w1 j) F - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, E/ Y4 h- `9 P/ D- T ~( H
- if(!Update.begin(maxSketchSpace)){
( d% F) G4 x- u6 `8 H - Update.printError(Serial);4 f# W8 R* ?. z4 J* m- {" z
- }
3 y! B% N3 c/ X! ?9 s - } else if(upload.status == UPLOAD_FILE_WRITE){
+ a! ]( f& N0 ?5 a3 a - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 U+ g. _. l* d5 p5 G' t1 ~ - Update.printError(Serial);/ U# P' R, X' H4 u
- }8 s6 w$ A' r) q- R9 ~
- } else if(upload.status == UPLOAD_FILE_END){/ L$ O3 e( X* B" }5 S! C
- if(Update.end(true)){
" t; ]& m" M; N0 {/ r2 y0 f - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( T3 l$ m5 R8 F
- } else {
5 H7 [. h( \" D0 P& l6 k" E - Update.printError(Serial);. D' G2 y! i9 a7 J9 { G1 R0 ~
- }: U4 ?( O8 H r* G. @" v2 q
- Serial.setDebugOutput(false);2 T* _4 t9 E. O4 ], Z* Q* x
- }( ?1 q- f @% V* C9 K; A* M5 }
- yield();" }, D0 G. X. c. W$ O2 t! J3 l+ s* \
- });1 u) t$ e( n% H' a4 T) V' O
- 8 z5 _: L$ x" @1 r
- digitalWrite(2,0); J2 |2 o" j6 p" X. J! O+ N
- mainAction();# [; \, _6 V9 X; ^' s; \
- if (digitalRead(0)){
; n1 y1 B1 z) T: e7 Z - ESP.deepSleep(0);0 S& r& G- c2 F# P* @6 x) o
- } else {3 t4 ~4 l; ?' z- w4 P" ?+ u/ M! f$ G) A
- server.begin();
- F) W! I( _; M$ Z" C% ^ - }6 T( T6 {7 h; t
- }
, V3 ]% Y" }1 Y: u& U" _ - void loop() {9 b+ Z8 P7 w- D; ]
- server.handleClient();1 V0 \, N: b! M8 P# ]( F
- delay(1);
. _ O4 H( y/ b& G7 S - }( S% L* t+ S8 d1 E. d6 ~3 Q- |, x% O
- String doGet(String url){
0 |% m M. X- J: _! _2 O - if ((WiFiMulti.run() == WL_CONNECTED)) {% Q$ W3 E, O0 h7 _4 v' |! H
- HTTPClient http;
* v# G0 n. h. [+ ^0 f6 F" r - Serial.println("[HTTP] begin...");
$ k( u$ b' q! c% i5 G( `. C' o, d - if (url.startsWith("https")) {! J! p, @; ]+ V8 o" i8 \
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 i+ S6 t! @% }
- } else {% v- h$ p, b0 a5 ^, [ O9 N2 H5 N
- http.begin(url);
S1 W" d' S$ ^% D3 F& f - }
3 @2 N* Z. G3 u( S5 g( O - Serial.println("[HTTP] GET...");$ O% v& ^. A% j8 T6 Y; Y
- int httpCode = http.GET();1 C7 C7 i/ j3 l
- if (httpCode > 0) {
4 t) j; g6 z) g3 S$ ~4 { - Serial.printf("[HTTP] code: %d\n", httpCode);
: ^- F; @4 F; f) g1 ~ - if (httpCode == HTTP_CODE_OK) {
+ L: y" W$ l( ]+ \ - String payload = http.getString();
4 f& A" M$ X5 O, v9 k2 |5 \ - Serial.println(payload);9 q y. a. q, |6 q7 m# d4 y
- Serial.print("\r\n");4 W" B" F% {7 p# C; }6 T
- return payload;, D9 g. C4 Z1 i) `2 Y3 l
- } k; J! i* q4 m2 h7 v
- } else {. r4 c0 K$ h1 ]7 P4 w
- Serial.printf("[HTTP] GET... failed, error: %s\n",
4 e2 i9 h: c. B# ^* T - http.errorToString(httpCode).c_str());' d- x+ {0 F* S" \$ d- w) b7 _" J
- }, _; A4 E3 _5 `
- http.end();
+ F6 u- B/ y w& J- ^ - return "";0 P7 g- v D: t- _$ J" _& @* M; y
- }) x2 Q! b2 q: y, s. ?! k9 Y
- }8 V, \% b" Z( S; u3 [6 r' ?
- void mainAction() {
$ @6 i2 A2 b2 x1 t8 | - // 发送请求
8 G/ n( E+ a) R% E - doGet("http://google.cn");
. U0 e0 ^9 M7 p5 x) w - }) _7 t7 `4 W* n
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