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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). _. I8 \; V( Y# t3 @! X \; O9 w$ `& e
- #include <ESP8266HTTPClient.h>
$ t2 w8 O! K1 S+ l+ u - #include <ESP8266WiFi.h>
# f% R1 }2 l6 E% k, a. e - #include <ESP8266WiFiMulti.h>6 X: K! J* M; V* Z S- h# w9 g
- #include <ESP8266WebServer.h>
( F! Y( Y9 T I6 Y9 H) A1 c - #include <arduino.h>6 v2 I( O7 N ~ f2 c1 r
- ESP8266WiFiMulti WiFiMulti;
/ }3 }' _. D% k0 | j/ \1 Z% ^5 F - ESP8266WebServer server(80);2 e; v, o; X* v& o6 H. k; X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) P) y$ Y# @! Z - ADC_MODE(ADC_VCC);
6 H6 X$ X* t. z7 l1 t' a - void setup() {$ l3 M4 r& Z( s: O0 S" f4 q7 N2 y
- Serial.begin(115200);
& u# q+ J V& p6 k9 N @, t - Serial.print("\r\n\n");! O; Q' G% k" M. C0 H# h# x8 `0 \& O
- pinMode(2,OUTPUT);7 o2 p/ O S- S
- // WIFI
4 o5 `9 b3 v2 n X- A) ?, _' `8 E - WiFi.mode(WIFI_STA);
5 R: `7 r0 J+ _: u- u$ Z# `; b' w - WiFi.hostname("Sparkle");) {7 X9 g. M* r4 Z0 @5 S( k4 ~
- WiFiMulti.addAP("wifi ssid", "wifi password");
" X" g( I& f) V1 d. F7 V( n% V/ F5 n - int tryNum = 15;( x2 Q3 |8 j b: h
- Serial.print("Connect WiFi");0 W# Q9 v9 j' i
- while (WiFiMulti.run() != WL_CONNECTED) {, b/ u- g* U7 V, a
- digitalWrite(2,0); e, _- x0 K9 W3 L
- delay(200);, F+ A: [% l: X- v; s% r" k, z
- digitalWrite(2,1);" }8 ~1 b! s) v3 T& O
- delay(300);" |9 [7 p0 Z- h8 p
- Serial.print(".");
2 J, [8 ?+ w* E) I6 F - tryNum--;
6 d0 `; r0 n0 J( ~2 X - if (tryNum == 0) {
* k9 b- Y/ U! I5 `4 R - // 1min
g! ^# t1 D7 Y( e2 E; q. C2 T - // ESP.deepSleep(60e6);
! g! o0 a& z+ H0 U0 C8 a - ESP.deepSleep(0);
7 t6 N/ G) c7 [/ P2 `5 i - }! }4 L- T4 \3 i" u6 O* k# e- ~
- }
3 E# N& S1 A2 f' o2 y' r A+ s; k - Serial.print("\r\n");
$ M3 A) d2 @& z- m - digitalWrite(2,1);
! n7 z! M" ^2 ?" P! e' b - Serial.print("IP address : ");0 u. _0 @# f+ [- A$ U) V1 C1 Z
- Serial.println(WiFi.localIP());6 W# n3 N' K. x, X: ?% {
- server.on("/", HTTP_GET, [](){7 E3 Y' r3 P: e; c% ?- z( E
- server.sendHeader("Connection", "close");
% |0 R- L4 }7 M1 S @* l, U - server.send(200, "text/html", serverIndex);5 D" \8 y T1 G: y" Q
- });
; r) `4 b" `0 o4 Q& D: ~- g$ ? - server.on("/update", HTTP_POST, [](){
! a& r; K2 L5 O, q - server.sendHeader("Connection", "close");* s3 j; Y6 x9 V9 K" n' P! b
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- e) @1 i& k7 o0 U5 t - ESP.restart();
: `( s5 G( \) \- y - },[](){) u7 s `2 N: J7 Y: g
- HTTPUpload& upload = server.upload();$ x7 p+ b& T& k$ L- M% D# X
- if(upload.status == UPLOAD_FILE_START){# H' ^; P7 ~! e+ Y+ L
- Serial.setDebugOutput(true);
" c8 d1 W7 S& m- t' c - Serial.printf("Update: %s\n", upload.filename.c_str());
' o, q& z( G7 S+ f. R0 x5 x6 H( {1 e - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ t; r3 r. d" Z5 y& W+ k
- if(!Update.begin(maxSketchSpace)){
! U. F! U+ m7 W( T. Q/ k/ A - Update.printError(Serial);
5 a2 t1 s- |# S' p, p2 P4 @ - }
; ?+ M/ h+ X. {3 X4 y - } else if(upload.status == UPLOAD_FILE_WRITE){) m4 I* n: K" v4 T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 M: e0 V0 q+ x' N2 p
- Update.printError(Serial);
3 L$ ?8 v: ` x- x9 I: J, G - }3 D% }6 J& i$ n) K
- } else if(upload.status == UPLOAD_FILE_END){
5 n& ~) ]. D0 F5 h P" I; a - if(Update.end(true)){ L) K8 ]5 |; }2 g2 r6 q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 F$ ?$ e, {7 w; R - } else {4 r, Q& K& H2 L, N6 `& |1 s% ^
- Update.printError(Serial);$ D/ C+ ~. f% R# [
- } F' X6 c. u" u
- Serial.setDebugOutput(false);
: X8 ]$ J5 x2 f. x0 G( V0 K; ?. x - }0 _2 L4 y& [" f
- yield();, T* ?7 N& X, C6 y
- });
?' u3 [6 V6 b2 k T6 U1 K4 Z - ' M9 j1 h3 x: w9 R- k
- digitalWrite(2,0);
4 `0 J7 P# z/ c9 K7 [8 c3 C1 O' F - mainAction();
. e, n1 w o( q/ y8 ]& V - if (digitalRead(0)){
S+ n, q/ @3 \) t; d. f - ESP.deepSleep(0);9 Z6 w5 T/ ^* `* X& Q
- } else {
$ u/ ]- h' l* z$ w - server.begin(); D: T5 { h& V" k
- }
* @: J; ?7 P2 B. }& E4 x1 D - }
: i4 B1 f8 T% X& {- N, {9 l - void loop() {# D5 y8 h1 F1 j/ ~) j; [
- server.handleClient();
- x) J; m7 E: W7 ]. C - delay(1);
/ o& A: V* {) \4 t- }: | - }
9 G& m9 l e' d9 a, o - String doGet(String url){
f* X5 M$ f8 O+ N - if ((WiFiMulti.run() == WL_CONNECTED)) {
' g! l* M" R* x - HTTPClient http;% U9 O9 }! b7 \- _4 e
- Serial.println("[HTTP] begin...");
# Y6 a5 H, A5 `3 z) G9 e. o - if (url.startsWith("https")) {
) S1 i( F# t9 N' ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 X) l+ ~, g, `" u" u6 |/ B5 _. p
- } else {
% s0 D! G3 }2 P% f0 b: u9 l2 j - http.begin(url);" {1 o' I3 Z5 u3 s- E. H% Y/ F$ _7 m
- }8 V6 a1 S( C g( K5 A
- Serial.println("[HTTP] GET...");
' u- G \5 R/ f - int httpCode = http.GET(); ?9 S0 q# i( U' ^2 ]+ S2 [, Z
- if (httpCode > 0) {% Q, P1 f0 e3 F1 k
- Serial.printf("[HTTP] code: %d\n", httpCode);
) d1 Y- _ o" [ - if (httpCode == HTTP_CODE_OK) {
7 `- x( |' p3 X$ N - String payload = http.getString();
9 A H+ R! b* e N) ~ - Serial.println(payload);
) ~8 J, ]* x+ O A+ h8 ]$ y - Serial.print("\r\n");
5 s# Q* d) j z - return payload;3 C- I$ }$ w8 p. K2 Y K+ I2 l
- }( n6 g8 @& b6 g7 _
- } else {
/ i( v9 @8 t% T& d3 e7 q/ ` - Serial.printf("[HTTP] GET... failed, error: %s\n",
; i, q) E$ ^% U3 u0 u3 Z5 k2 i5 c - http.errorToString(httpCode).c_str());4 ]" h$ d$ H+ j4 ^- P1 j* A
- }% \( V) V# Z, I+ x4 C
- http.end();5 p/ A% x7 p1 z0 t) o
- return "";- X2 o$ a" U- ^* F$ w* @* J
- }5 x, a p* Y1 r# G
- }" t, X8 K" h; T" `' A! g% j/ H3 n2 C
- void mainAction() {
$ R3 b- v. K; ~9 e. | - // 发送请求
. o4 }9 d, O: ~4 w7 d8 P1 U. ] - doGet("http://google.cn");. ~9 S# T: @) @7 q5 R- Q) B
- }
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