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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)
7 {: U; q6 ]; z1 U- #include <ESP8266HTTPClient.h>
! d9 \) q7 i3 o* H3 }* u - #include <ESP8266WiFi.h>
G( G' u6 g+ } - #include <ESP8266WiFiMulti.h>
$ ?8 ^, S( p8 M9 s9 _ - #include <ESP8266WebServer.h>
] ^2 i; U, a - #include <arduino.h>
# C7 S, ^- t* d6 N7 q: `) d' y - ESP8266WiFiMulti WiFiMulti;
$ Q. {0 m0 ~; L* j, {# z+ g4 y - ESP8266WebServer server(80);# H7 m+ A% X2 N8 N5 g4 o+ n
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ D" V- k- _( _. P" y
- ADC_MODE(ADC_VCC);$ ]1 Z7 E( _3 I2 x/ O1 L
- void setup() {
2 C: T! m# U' c" [ - Serial.begin(115200); A$ l; f/ c: [: L- @8 |$ R( g
- Serial.print("\r\n\n");, o8 o! N4 B @6 J# o% {
- pinMode(2,OUTPUT);* M. }3 |. G9 d5 y' \5 m* H" R0 P
- // WIFI
: y* S, L6 N0 b: r9 B. c - WiFi.mode(WIFI_STA);
) g1 W# \6 R9 B, }0 o - WiFi.hostname("Sparkle");
- I3 M- b1 {& H" t" U - WiFiMulti.addAP("wifi ssid", "wifi password");7 n; ~, N* _ O
- int tryNum = 15; X/ T* _2 q. N* N
- Serial.print("Connect WiFi");- m0 [6 w0 J1 D; V
- while (WiFiMulti.run() != WL_CONNECTED) {! ~" G( x% d9 w! T; H7 @0 d
- digitalWrite(2,0);4 V& g$ S& r9 Z5 F' S% e9 h
- delay(200);+ g) ^% n7 q& P6 G6 Z. l; \. k
- digitalWrite(2,1);
- v, H# `) V& w6 ~ U - delay(300);- O& m% M( v6 F o) S
- Serial.print(".");6 X" W9 H+ P0 T B, w; f5 m* Q: l0 l
- tryNum--;
4 S( E- j* c/ U& s3 ~7 Z - if (tryNum == 0) {5 J' ?: t+ Q& x. g2 M+ c; M* B: J7 u0 r7 F
- // 1min
' l9 `/ W+ t a - // ESP.deepSleep(60e6);
# I% c! {! [' z9 b2 d+ a - ESP.deepSleep(0);) W! p4 P6 S' u w- q: g/ ]! h& u
- }4 `" w' D9 f& K2 Y. T& v0 h3 }9 v
- }# M5 Q4 u" Y/ Y; Y; @
- Serial.print("\r\n");0 f9 ~; Y. J9 n3 E
- digitalWrite(2,1);$ W, y# U& i6 w+ q; z2 S
- Serial.print("IP address : ");, y* N( d+ U/ I( ^
- Serial.println(WiFi.localIP());& U# ?6 ~& _* x
- server.on("/", HTTP_GET, [](){
# z+ O, W& m% ^$ A+ W. g- T2 a - server.sendHeader("Connection", "close");
( y6 u' i ~/ x - server.send(200, "text/html", serverIndex);
# ^" P! m `! U - });) H' U" y1 M# H5 p, f7 S
- server.on("/update", HTTP_POST, [](){3 X; c- D9 s& F/ U. s) T$ R
- server.sendHeader("Connection", "close");
4 [9 N% J1 z1 B1 S/ d" k9 } - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 k+ Y9 H! B3 l - ESP.restart();# p, e- ]! b6 u( U' U& F. |
- },[](){
! I( m% N6 Y$ d: s' D: @+ P - HTTPUpload& upload = server.upload();/ _, {( p4 y2 \3 z: T. n
- if(upload.status == UPLOAD_FILE_START){8 P; V* t& F i5 P( C2 k
- Serial.setDebugOutput(true);& u$ J3 t) v1 O, h+ O1 y
- Serial.printf("Update: %s\n", upload.filename.c_str());' j K6 L. y7 d: g$ Z6 t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' Z+ N: A6 U, u6 y3 d- V
- if(!Update.begin(maxSketchSpace)){- Y- d( U7 w: ~/ C2 d) {
- Update.printError(Serial);
8 w9 @" Q. I: K# J; c - }
. P+ w( ?; C9 W) t! d9 E - } else if(upload.status == UPLOAD_FILE_WRITE){1 A0 N- q- d ~; K7 e: m
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# x& s6 B" |1 Z. y3 N5 E* {2 ~/ m6 l; x
- Update.printError(Serial);
5 J0 i# T, @( M# o+ P3 a5 g4 G - }( l" ^# i5 U: X& h- O( z
- } else if(upload.status == UPLOAD_FILE_END){
3 ^ A( r$ G2 ?3 Z: b; [ - if(Update.end(true)){
- n( h6 Z+ p" `3 ~# a7 A! M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 M1 m( O5 C0 Y/ m: U
- } else {: }* T' M7 Y& n$ |
- Update.printError(Serial);: T3 r/ c" l+ n- q; Q( R: E) Q" o1 O
- }. u. y/ o; d( u
- Serial.setDebugOutput(false);
+ h I$ c8 S* `7 n - }4 i1 L1 W* s( J5 P# z O* d
- yield();! x8 y v! ~" ~9 y9 |
- });: ~7 D9 n6 {$ r+ Z! A3 s
-
: b2 p& _0 m/ Z% B" I5 _* F - digitalWrite(2,0);
" ]) c! _+ _* s1 t$ a' V - mainAction();
% f' M( B! y" X7 z' X, _) ~ - if (digitalRead(0)){* t' X, A: W- P& k
- ESP.deepSleep(0);
( n. b$ l6 y0 { - } else {
1 v( e& l7 E' x; z# g - server.begin();+ R' o" J; n' K5 Y. `. m. M, ]8 P: Y6 O
- }
( ?. \3 ^% P8 E+ l C& X - }9 g# }/ a% ~& P6 [
- void loop() {
* u4 ~; f2 n3 I2 g4 F% s% H - server.handleClient();. f9 `# ~- Q# }* B! I0 U2 {$ Q' m1 b
- delay(1);2 ?5 \6 ?8 ~6 ]6 [! M& B
- }
& p- J' W& U. I4 H6 o" B - String doGet(String url){( m! J6 S; b" C2 g9 o
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 z+ g' T5 [8 n$ K, w, Z
- HTTPClient http;' h% M5 u5 M- `0 Z
- Serial.println("[HTTP] begin...");4 x. t0 L4 f+ Y
- if (url.startsWith("https")) {
6 S' c! n9 q- b - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ B+ f, n9 {! @
- } else {
" M1 _! Z( l3 \, Y - http.begin(url);# B2 z6 w/ n9 _5 b
- }- b! b5 P ?$ Z; M* O
- Serial.println("[HTTP] GET...");
4 i3 F8 n8 x$ d: |, q7 k - int httpCode = http.GET();
" g* E T+ [0 e) @6 i# V - if (httpCode > 0) {6 x% r9 ?9 O& \7 Q* ]
- Serial.printf("[HTTP] code: %d\n", httpCode);
A3 V4 }2 ~5 [3 P' m/ X6 N$ [ - if (httpCode == HTTP_CODE_OK) {1 J! n/ s6 k5 V
- String payload = http.getString();; p/ D. J6 g$ l, z" `8 k
- Serial.println(payload);
; }$ f' R# |3 {" ?' ^ - Serial.print("\r\n");
& g# x W4 [5 Q1 ?+ X' P6 C: w - return payload;% h% q( o* E* A$ n
- }* Q) d* _2 C4 y
- } else {
7 H# b7 p7 Q* a4 W* E6 z - Serial.printf("[HTTP] GET... failed, error: %s\n",
+ z6 Q( `/ q6 p- w- ^ - http.errorToString(httpCode).c_str());
/ q! H; ?! L& b- j) A# N Y - }
* o' F. z u9 a' T - http.end();
. I* L$ Z2 M% l - return "";5 y& o3 ^# l7 t. q" d! }; Z1 b0 c
- }
' I1 X1 Z I! ` w; H$ v( V - }
& J: g+ j3 ^% P - void mainAction() {6 b* ] w7 b& A$ a! |) s
- // 发送请求: x8 k2 O5 H' B3 h$ F- Z+ m3 e
- doGet("http://google.cn");5 |& [3 Y* p; y/ L5 Q
- }
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