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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)
$ J* M9 v3 O1 ?7 t0 d W8 G- #include <ESP8266HTTPClient.h>; T6 _* R$ }+ P2 u7 V l
- #include <ESP8266WiFi.h>
4 m! p# O+ C6 y; O% P1 g - #include <ESP8266WiFiMulti.h>
' q2 D& l2 \& p5 L4 r9 B - #include <ESP8266WebServer.h>
6 z! ]. o" `9 ?- H# K r - #include <arduino.h>
" @# g9 A! a) j) ~ - ESP8266WiFiMulti WiFiMulti;2 u3 X3 X2 H! S& l1 |* f7 b/ [
- ESP8266WebServer server(80);
, V8 ^; c9 t9 l( [" r3 m9 R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; f' s3 {' S6 V. H8 q* H
- ADC_MODE(ADC_VCC);& t) e3 E0 w% s# w
- void setup() {
1 k, |$ K( E; A" y/ q9 i2 X2 n9 h" o/ S - Serial.begin(115200);
0 j" `, h6 z# G5 R - Serial.print("\r\n\n");" W; x& D3 e1 g1 u3 O
- pinMode(2,OUTPUT);- _2 M& y* |* P) e9 _6 ~/ Y
- // WIFI
7 o D& m5 U1 O; |+ { - WiFi.mode(WIFI_STA);
: ^, y Q# m! T# A - WiFi.hostname("Sparkle");9 r; l) W& X4 ~5 O) ]: l
- WiFiMulti.addAP("wifi ssid", "wifi password"); ]/ q$ Z3 E' ?6 [6 ]
- int tryNum = 15;
% k0 d) x; c& { h+ g* b - Serial.print("Connect WiFi");
9 \" F" Z3 P6 E8 b2 q - while (WiFiMulti.run() != WL_CONNECTED) {
7 ^% z# `9 M- \" l C6 Z9 j - digitalWrite(2,0);2 D' Q' B6 q) M4 g* T9 ]
- delay(200);
' o* b' ]9 ]1 F' E& u. v - digitalWrite(2,1);
* e) s( k9 L/ q) Z - delay(300);6 Q/ D' B9 ]% ?" ?9 F
- Serial.print(".");4 y/ G) K. J3 J9 ^' E0 l1 O& s a; f
- tryNum--;& h' g. b: h# K! V8 n: O
- if (tryNum == 0) {
% B1 b3 u3 m7 z1 ^ w9 _ - // 1min
* y& o# }5 U8 P - // ESP.deepSleep(60e6);7 _9 `& w; F$ ?3 `
- ESP.deepSleep(0);
) U4 @' g" q! R- O - } U: y( \$ ~, E
- }
- [! V8 y" z1 U) Y* }) R - Serial.print("\r\n");
g) U' K2 Y3 S" Q - digitalWrite(2,1);* C( Y) w" W( V1 ^' Y I( q. ~' k
- Serial.print("IP address : ");
1 t' W6 p& v, b. d - Serial.println(WiFi.localIP());
' w0 f7 z/ C/ o - server.on("/", HTTP_GET, [](){) V) r- [- Y8 y/ z: r& ]
- server.sendHeader("Connection", "close");& f& c1 N( B5 o: t
- server.send(200, "text/html", serverIndex);" H7 k( l* Q. W* E/ p! e1 B3 p. u% M
- });
3 G A/ f! {2 c& m1 X: b - server.on("/update", HTTP_POST, [](){
' H2 x* G1 I- O+ w. V1 b# b6 R! g - server.sendHeader("Connection", "close");2 d" ]" }+ H# r. Z' J! A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: U& V) |) `4 z - ESP.restart();
6 v* I/ V( y) x - },[](){
b! J7 M/ n0 p* \ - HTTPUpload& upload = server.upload();. q0 q9 Y0 \9 k" X
- if(upload.status == UPLOAD_FILE_START){
. \9 ~6 j" [) R& n% J3 ^ - Serial.setDebugOutput(true);
" k7 g/ C( N( R @0 C& p% X" G( m' L9 N - Serial.printf("Update: %s\n", upload.filename.c_str());
, [9 _5 G; x5 x; s - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" C7 q/ W2 C2 s3 b
- if(!Update.begin(maxSketchSpace)){
9 I: J2 @2 O9 ~6 U |# c, l7 n) ] - Update.printError(Serial);
& }/ d! C- N3 A5 ^8 T G - }
& E, n M8 Z: ~; \/ c2 b, U - } else if(upload.status == UPLOAD_FILE_WRITE){+ y+ @, j1 Y( c% q9 w$ n3 W! E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# ]. Q* L& ]" x* x$ m1 g, B
- Update.printError(Serial);
4 V/ \8 B5 p3 C! Q5 Y8 _5 b4 [ - }
+ j9 B9 J9 o1 e+ ~3 c; t( s* k - } else if(upload.status == UPLOAD_FILE_END){$ B2 a+ I! B" B( K" u! B: W7 r
- if(Update.end(true)){1 j$ f7 g2 c7 t7 m1 g# M
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ C& l( N7 p% {) n' ]! \ - } else {* M/ N0 h7 }. T. y
- Update.printError(Serial);: C7 s; x" O3 l
- }
, @6 \& k* D) @# s4 \6 _ - Serial.setDebugOutput(false);
# w3 X0 E% z. O. o3 C - }: l, x; r) u5 J
- yield();, W+ F {1 |' i
- });
& C% a. W' q/ D& X1 `/ ? - " I$ x9 e q$ e% z4 w
- digitalWrite(2,0);7 ?8 A, M0 Q7 f; u4 D1 D
- mainAction();+ X, R4 c! ^, g- n, l
- if (digitalRead(0)){
& G4 p; b3 H# o3 P - ESP.deepSleep(0);9 D1 A& H7 N2 N& ^( M. E& w* l
- } else {
5 S- r- e a( l0 G' x - server.begin();
- V- u0 T6 i# ~$ p: X6 r - } b* T2 l! g) R
- }9 @. ^- f* p/ g% L6 E% Z
- void loop() {; {. D% b+ v! T" B; L9 p5 @
- server.handleClient();
; a6 R5 J: I# u% h! u7 U! }' ^ - delay(1);
4 [* r, R) J, a4 T8 u9 P - }/ s5 J. H& I; ?. G7 S
- String doGet(String url){
7 y0 d$ g( l- g4 J' [ - if ((WiFiMulti.run() == WL_CONNECTED)) {( @ e2 |6 b8 l9 s
- HTTPClient http;: e$ r+ j1 X5 J( I; c
- Serial.println("[HTTP] begin...");/ d& v1 m3 X+ u+ T
- if (url.startsWith("https")) {& [# f" ~" Z- R$ f7 U/ C
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); r$ ^: x$ ?' W( N4 c5 T
- } else {3 i2 I6 u, r5 @' @2 ?* U
- http.begin(url);0 R4 m# A, y% G4 f" P2 }" D
- }
" a+ w% m2 z9 }1 w2 ~ - Serial.println("[HTTP] GET..."); n9 u: J4 ~% g( P. h+ y; b
- int httpCode = http.GET();
$ J) R; G- R; v4 a - if (httpCode > 0) {
' `0 I: d1 ~" j- X n& p - Serial.printf("[HTTP] code: %d\n", httpCode);: g5 P( }0 O' h/ @: y/ I
- if (httpCode == HTTP_CODE_OK) {$ D5 h: }" ^$ s6 q% N+ d6 J8 A
- String payload = http.getString();
. N! ]; C% H& j; \6 N1 ?7 g' [3 { - Serial.println(payload);
5 P4 G5 ?2 [9 b0 [) g - Serial.print("\r\n");
2 x) d: Q2 S2 p" v, l# _ - return payload;1 m B% d) o) }* m- V
- }, `9 Q& {& `$ k
- } else {
: E+ s5 `- r/ A& m( Q - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 e% R y1 u9 ~" H. t r6 L - http.errorToString(httpCode).c_str());
7 e7 {- Z4 Q0 e ]$ {& f - }
: J2 I/ I+ A" {+ {/ |* r$ L - http.end();" E- T! {' M! @* ]: n1 R* ]; F
- return "";- x8 v& _# d3 V9 O
- }* s. x7 J: I$ O6 I( F0 z/ R
- }: V! r$ o+ x8 v g6 t
- void mainAction() {$ a, y) `% J1 Y* o' o. v$ e
- // 发送请求
; F! _* u. b! z- m - doGet("http://google.cn");
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