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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), ]. M6 Y* X7 Z" m" E' N
- #include <ESP8266HTTPClient.h>
) k6 o+ E8 a h) u: o% V - #include <ESP8266WiFi.h>% c2 K* I a5 e# s! P3 |9 u
- #include <ESP8266WiFiMulti.h>
& B# g }) v% }, t* X- [ - #include <ESP8266WebServer.h>
# H/ L( H, h F( l - #include <arduino.h>
; R- i; }, W$ a9 q4 ^# p8 M - ESP8266WiFiMulti WiFiMulti;
- o) K& l/ F1 i* `2 V, | u, N8 \ - ESP8266WebServer server(80);
& R# [1 m( l' ]1 X1 {6 | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: z& T1 M$ W; y+ a - ADC_MODE(ADC_VCC);1 q; b% t6 n/ V% A p; S5 ?) w
- void setup() {
+ f s0 u/ K$ [/ V/ S - Serial.begin(115200);
+ w4 e: @) X. p; F3 D/ ` m - Serial.print("\r\n\n");
8 c3 U" y" u; P! T' D3 Z: {3 q6 M3 v4 F8 [ - pinMode(2,OUTPUT);
) Z' e3 ~ n' q6 w4 ?1 v - // WIFI
: U7 j3 K M3 R, x& G/ X4 R3 Q - WiFi.mode(WIFI_STA);
' x4 f9 { P: H- r - WiFi.hostname("Sparkle");& Z* X, z' X0 V; O1 Q* s0 L S
- WiFiMulti.addAP("wifi ssid", "wifi password"); [1 ]( y/ X- e7 m
- int tryNum = 15;
$ H+ M0 F% J1 I& B% }1 z6 n" U& i - Serial.print("Connect WiFi");
0 ^9 j4 P9 W R6 R. z$ B4 h - while (WiFiMulti.run() != WL_CONNECTED) {' y" P* [" ?, y6 `0 Q. S
- digitalWrite(2,0);
0 l! I0 z3 }# Y - delay(200);! Y0 v( O9 J& }# {, H: i
- digitalWrite(2,1);
; _. S; P. u5 M - delay(300);
& l0 f% \4 e6 j( M4 R. B! A - Serial.print(".");. a3 I* p7 x& T" O2 V- _! V. U- A
- tryNum--;
$ ~* r% M' E. ]8 w% T - if (tryNum == 0) {% I) l0 O% K1 h+ @' f2 u
- // 1min
, |0 M, e% w% y; Z* s [" K' F - // ESP.deepSleep(60e6);
: u- C' D* \2 S$ k! t) N - ESP.deepSleep(0);( |3 n6 K9 j/ s
- }
+ X: W1 d/ K! F" L$ M7 h - }
% Z- E/ F& o2 v0 k7 f - Serial.print("\r\n");
- g5 i2 W3 ^2 U - digitalWrite(2,1);
( V$ `% D( P; Z. d( B - Serial.print("IP address : ");
$ d& F' x! r2 C( r# {" P0 F - Serial.println(WiFi.localIP());3 y7 h9 N/ t3 F1 p( C
- server.on("/", HTTP_GET, [](){; f/ r4 f. ?' K0 ^# K* e/ E
- server.sendHeader("Connection", "close");5 J2 {, c& {) ^
- server.send(200, "text/html", serverIndex);
: X9 I V1 @! I3 h+ y" Y - });' @8 z$ T1 D8 l9 }& _
- server.on("/update", HTTP_POST, [](){
5 P! u9 ~' V F% a% x' v. j - server.sendHeader("Connection", "close");/ {& z7 B4 \4 k V& i- P6 U! e
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 C N+ y+ U; c. h% V- p- ?
- ESP.restart();0 |. ?: E& C9 i, U& x
- },[](){
1 G3 ?- ], _/ O- r9 b - HTTPUpload& upload = server.upload();- d& c. ^: }, G- Z+ i
- if(upload.status == UPLOAD_FILE_START){
) \$ ^7 {' M2 _- D - Serial.setDebugOutput(true);
* q- c7 T/ l3 p0 `) M0 u) H - Serial.printf("Update: %s\n", upload.filename.c_str()); a9 H+ w. h' e% h/ b# ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( a, [ Q* f; U! b - if(!Update.begin(maxSketchSpace)){* `# x4 V* @) j i1 Q2 z. p
- Update.printError(Serial); U6 m1 x& [7 w c- f, ~
- }
5 O d) h1 A% J* ~8 h/ X - } else if(upload.status == UPLOAD_FILE_WRITE){3 M4 x1 l+ z: z4 f- d# [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' c& n- ~) t2 W/ O4 W - Update.printError(Serial);3 R4 A; b }: u
- }
. o1 L- v, R2 ]! \6 r' L - } else if(upload.status == UPLOAD_FILE_END){
) f% i0 _+ w: N/ s - if(Update.end(true)){
. q/ t* b3 C: g8 W - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ D/ {3 j' t7 d8 L8 O - } else {+ c! y$ u/ _4 u/ E
- Update.printError(Serial);
" X4 U+ T9 b( a3 S - }
; H9 P) ?) Q g% d+ O4 q - Serial.setDebugOutput(false);! n4 ~6 ]6 ~4 Q
- }( s: u0 ], a# e, I( Y- P9 ~
- yield();/ `& H8 ~( N4 H/ l$ m4 P; @
- });/ x! i5 k3 D2 I2 w/ J+ J' w- T; r
-
8 O5 U/ l& a# \3 t - digitalWrite(2,0);
" t" V1 r6 z3 r' y+ V7 ` _ - mainAction();% H2 I. J- r3 V0 A
- if (digitalRead(0)){
+ p$ [5 A2 |2 |/ q% D7 x - ESP.deepSleep(0);
, p5 `! y7 ^; m! f - } else {; G3 f; w; ?4 o9 C& n5 N- _
- server.begin();1 Y+ G6 _4 O; Z& a% e+ o
- }6 i7 m, H: m/ C; n, ^
- }$ o2 h& B$ z5 o% ]+ Z# @
- void loop() {
2 W6 r4 `# x* W; I' n0 z; } `- _6 X! z7 x - server.handleClient();
$ G- x" L5 x- c& o4 k2 d - delay(1);
+ Z9 b( q0 c: l% K - }
- @; _$ Z; N* H3 W' L+ e$ i% X0 F% v - String doGet(String url){
" p0 A; R* T: ]+ T! `( l+ G4 C - if ((WiFiMulti.run() == WL_CONNECTED)) {+ B8 B, D8 G* y4 `6 ]
- HTTPClient http;
2 j, i, E$ }& K' o - Serial.println("[HTTP] begin...");/ ]: e) U6 o# S$ J8 }) P3 d
- if (url.startsWith("https")) {" Y# L/ @8 C1 X+ V, K. D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" I, S# T$ T( L: u) g2 E# \7 J - } else {4 b5 W9 g' L8 q( g" R* L
- http.begin(url);! i4 @* J. F1 H$ ?- z# W h
- }
: C6 h4 m8 T3 B {! H! t5 W - Serial.println("[HTTP] GET...");
3 E& p& a. _% Z - int httpCode = http.GET();+ y3 a& `$ q J3 x8 U$ f Y
- if (httpCode > 0) {4 s. S+ W9 T& E4 W. b* |$ _- y6 u
- Serial.printf("[HTTP] code: %d\n", httpCode);! l! b) u# ?# S; B2 K
- if (httpCode == HTTP_CODE_OK) {
. S+ D1 L% N- k/ W9 b, @ - String payload = http.getString();
) C9 W' x5 M9 X- B" c - Serial.println(payload);" U# x' u/ [6 `$ [' R
- Serial.print("\r\n");( F1 ^' ~4 Z) j4 u
- return payload;7 L# Y$ Z- R; ]' _
- }/ k2 l$ N0 @) `7 }% u6 l
- } else {5 X8 d7 ]* w( R- B, h: S; V0 k m% h
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 F& @) [# |" O6 ?( Q, a! P - http.errorToString(httpCode).c_str());
- z h) @8 b" b- v" Y5 M - }) H0 S. g8 P; N+ R) Q. K0 q
- http.end();
1 C- D# Z6 Z" w/ U3 O# @ g - return "";0 B8 K3 f7 T# Y" ^: T) t; ], r
- }
+ A7 \9 w. {' _. ?( U, v - }
* @, u/ E+ r) }, I. \ - void mainAction() {$ Q4 j. K* F5 s; l
- // 发送请求" J6 O& n; L8 r7 Y
- doGet("http://google.cn");
" [* |# v4 o- D3 C- V# [ - }
) ?$ r @/ b) ] Y% B9 Y
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