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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)
$ V, B/ |% }8 ^& |5 d; |9 i- #include <ESP8266HTTPClient.h>
: {7 x8 n! P3 N& n2 u e - #include <ESP8266WiFi.h>3 C$ Z6 o' \3 `0 A) i
- #include <ESP8266WiFiMulti.h>
; }. d: `( g+ X0 t- g; ? - #include <ESP8266WebServer.h>1 Y7 l( }$ U( K+ {6 H9 W/ V
- #include <arduino.h>. G# j5 [: K* F4 N- m% R- m
- ESP8266WiFiMulti WiFiMulti;4 K- g9 Q# e+ ^% C# z1 b
- ESP8266WebServer server(80);" W/ x4 j3 _. g7 y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; }0 o! m: ?& e9 M M% Y
- ADC_MODE(ADC_VCC);& n! b& r! K+ b" } ~- M( p! h
- void setup() {
3 D7 X5 h- _7 Z ? - Serial.begin(115200);; w" B$ D! _- z3 f# \! {
- Serial.print("\r\n\n");& _! E V4 [4 u. {: T7 [7 D9 E1 D0 y! |' K
- pinMode(2,OUTPUT);
. @3 p" S5 E! Y! t2 a- Y - // WIFI
/ Q9 K! l4 C9 l9 M - WiFi.mode(WIFI_STA);% n2 L! G2 R) z/ L1 J5 u) o
- WiFi.hostname("Sparkle");
" Y/ {& Q. @1 A4 V+ b; e0 e% A( R - WiFiMulti.addAP("wifi ssid", "wifi password");3 Y0 ]0 j) l) Q+ w' d
- int tryNum = 15;, Y; G& Q, u5 o5 |+ A% ]8 R
- Serial.print("Connect WiFi");
) |& G/ o3 I% d9 L2 E8 _: v x - while (WiFiMulti.run() != WL_CONNECTED) {4 J, N& x! p5 Q# r# Y6 n
- digitalWrite(2,0);+ f. I6 `' r8 _/ s" T* X
- delay(200);
. X$ q: {6 r# V* ] - digitalWrite(2,1);1 F& p' O4 r! p3 G+ q" T* O. g
- delay(300);' e, c8 U$ _6 R, j" E
- Serial.print(".");- @6 j7 O3 g3 U' l$ R% B
- tryNum--;6 J; t: Z/ N+ x; b" F
- if (tryNum == 0) {
5 N. V9 p8 b8 Q5 a, V7 f g- [ - // 1min
0 F; s; F% f7 N0 }1 y* H4 I - // ESP.deepSleep(60e6);
' {% _& a0 f' b/ P: K8 { - ESP.deepSleep(0);4 T8 B* E' b! I( R3 W0 F# D
- }' Z: M0 O6 U' V. N% g; w
- }: P) P6 g$ b) p( ~# H
- Serial.print("\r\n");
+ U$ Q0 q5 W9 J% i0 X - digitalWrite(2,1);7 g' v+ E! a( d G I
- Serial.print("IP address : ");$ B4 P/ J8 v1 H$ A5 ] o8 I: v
- Serial.println(WiFi.localIP());+ V* O' J1 F# S& G4 x
- server.on("/", HTTP_GET, [](){
1 \5 n9 {3 R7 w5 P6 K - server.sendHeader("Connection", "close");
8 f- k- {* x, E' l - server.send(200, "text/html", serverIndex);9 _' g- ]$ d' g$ g: Q4 h6 R
- });
3 E+ Q* N5 ~) P. K [' d+ i - server.on("/update", HTTP_POST, [](){% \; Z0 |# W4 Y
- server.sendHeader("Connection", "close");: x' } v$ ]" b6 D
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- g7 ~) F" ]7 m
- ESP.restart();
9 R! y* F& c9 G4 x$ ~; [ - },[](){( B1 u% q2 m+ N
- HTTPUpload& upload = server.upload();$ N, @- W7 T; U; k8 M; r
- if(upload.status == UPLOAD_FILE_START){
/ k2 f! k6 V- D - Serial.setDebugOutput(true);! _% M3 S. M4 N& M# _3 @# o( g, z
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 ~- l3 Q5 @% u. l - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 c Q- h( `, b4 l
- if(!Update.begin(maxSketchSpace)){
# s, t/ [1 e5 E* E0 g+ r' m& g - Update.printError(Serial);
- e4 q8 R, m9 C; B0 y - }3 O# a) t: r. Z" s4 O w
- } else if(upload.status == UPLOAD_FILE_WRITE){& d' H4 K( W& i6 h# q; _
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( c0 \4 ^, N8 a) C: [1 O+ k
- Update.printError(Serial);
0 z6 e! d, o: B% ^ - }. S- x) r U+ c7 m, b
- } else if(upload.status == UPLOAD_FILE_END){1 t6 ^7 n" Y) O c8 H# n
- if(Update.end(true)){
' L5 V2 T' L* m# \2 S0 _ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 t2 ~8 [1 Q) u3 D; x* I9 m7 i - } else {* a+ G+ L& I: d
- Update.printError(Serial);
\) Y; _3 X7 r - }
! P, n! T% @& N1 p9 m7 f# S3 v, q- Y - Serial.setDebugOutput(false);3 l" \( Z* a: P4 v* l) a
- }3 y* e+ I6 ^! P( `1 S
- yield();1 |5 v% g ` r) `
- });( l2 o L* G6 }' }
- . y$ L2 \" ~! i$ O# i
- digitalWrite(2,0);
: ?( n1 f2 D ^0 {9 ? - mainAction();
! w; x9 T. j/ p; R - if (digitalRead(0)){3 _. z7 a$ r p) y
- ESP.deepSleep(0);/ F$ C8 F. T$ ~
- } else {4 M0 h! W1 _8 o
- server.begin();
0 ^! M0 f* |* r2 B - }4 m6 t6 Z% m* t1 O' H! w
- }
4 \2 U0 Q4 s1 v. ^) O& K - void loop() {& w/ O/ j& j9 U! L0 U
- server.handleClient();
" ~$ m4 P! q! k" u - delay(1);
$ `) G {, S h* q: w - }
" k0 s+ C$ k+ W4 ?* s4 W - String doGet(String url){
- |: Q: h: p0 z* r7 \' H. F - if ((WiFiMulti.run() == WL_CONNECTED)) {
! W W7 S ^4 i( y/ l4 w7 v1 \+ u - HTTPClient http;
" @0 Z# `4 ]3 h- [ - Serial.println("[HTTP] begin...");( T6 x d E7 g3 j j* [
- if (url.startsWith("https")) {! H/ [9 U, c6 L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- e) E- s& I2 _) j+ b. |
- } else {
^( q6 H5 M4 p0 y - http.begin(url);
9 Y# @ Y% z' t. y- x4 D - }
" q* v0 ]: f# A7 d9 \ - Serial.println("[HTTP] GET...");
; w$ h( x+ M" {% a0 M3 C4 X - int httpCode = http.GET();2 r; W" n: V" [2 g- e5 m9 o
- if (httpCode > 0) {* D- h7 M8 t" `/ ^
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 R! n ^- T5 `$ g4 ]1 v - if (httpCode == HTTP_CODE_OK) {
1 R% S. M% ?8 p - String payload = http.getString();" @0 {, d$ ]6 `2 B( p" X8 ]
- Serial.println(payload);
) P8 s% d5 k. U7 N5 K: @7 k, w - Serial.print("\r\n");; R/ V1 J4 q: H1 x6 e4 u& ^/ a
- return payload;. G' E3 `) J; c! O3 c
- }
! r! y' n2 U; J' \0 {. b - } else {
5 H B* ]1 M1 s. y/ m* U - Serial.printf("[HTTP] GET... failed, error: %s\n",
) @) B2 ~! ]0 O - http.errorToString(httpCode).c_str());; `% Z H9 }" J- I9 ^: T) i
- }
4 ]( D' b2 X* k5 C1 a - http.end();
9 x2 C" a0 g9 L6 O$ M$ N- @ - return "";# r0 G4 _6 ~+ R7 \6 c% @( Q5 L: m! _
- }$ s ?5 Z( W$ j( g# D+ q
- }+ b" I8 o+ V/ h) ]) e
- void mainAction() {
/ {& i; B( T: \ - // 发送请求
- _9 T; o/ H; u- g: B - doGet("http://google.cn");. B1 N+ W# O- d0 K$ g5 f
- }4 R+ p% B- z1 r" { [) J. W
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