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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)1 ?. b2 ~% z" M9 J: V
- #include <ESP8266HTTPClient.h>
4 h1 I2 `* ^/ I. U - #include <ESP8266WiFi.h>
/ M0 P; B4 V4 h _6 S- ~8 T0 R - #include <ESP8266WiFiMulti.h>1 M) P4 F( D4 g$ x0 W
- #include <ESP8266WebServer.h>/ K; n8 Z# x" t' |; ^; S3 ~* v, h
- #include <arduino.h>
u: Q4 V4 E2 U/ {& T% Z - ESP8266WiFiMulti WiFiMulti;
' U' ]. s t7 I' k; u) ^ - ESP8266WebServer server(80);
! k j5 z3 w$ F. ]6 `9 G% e0 W - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, Z* w! W2 n% @) P3 K$ J) A - ADC_MODE(ADC_VCC);& k8 \$ W( C* r4 D$ u4 x
- void setup() {
9 [5 x7 N6 j% e9 o% m) z2 V1 ? - Serial.begin(115200);6 D, D/ T4 }" Z
- Serial.print("\r\n\n");
9 b! o+ {5 z9 ` - pinMode(2,OUTPUT);" d1 F8 Y, a! A) V8 E
- // WIFI; B/ b/ R# M' t* f7 n. g& J
- WiFi.mode(WIFI_STA);
, o. }$ C+ r; p4 W! z - WiFi.hostname("Sparkle");
/ J% v! h, c) y! R1 B# p- P9 P - WiFiMulti.addAP("wifi ssid", "wifi password");
3 z3 y+ F5 d" c5 G" E u. N. k - int tryNum = 15;
# W6 [, {' g! W. T/ u6 E1 ` - Serial.print("Connect WiFi");: u" K- E- o* b
- while (WiFiMulti.run() != WL_CONNECTED) {* ^- E9 \* |8 e# ~# L3 {) k
- digitalWrite(2,0);
+ f8 s2 r6 h9 O2 Q* ?1 t - delay(200);
/ _1 `3 H6 r; d. n! j2 S8 j - digitalWrite(2,1);
3 x" O2 j5 _6 p; \ - delay(300);( y/ g- E! s& J2 Y! v+ M
- Serial.print(".");. F8 S* m! Z p% h5 X
- tryNum--;
4 U" Z0 g' g3 j - if (tryNum == 0) {
& h0 B& ?1 E0 q, f& W+ F - // 1min
5 Q, z/ K- D6 L! L- P' s - // ESP.deepSleep(60e6);
& L8 x G: Y7 G0 s( a - ESP.deepSleep(0);
/ z7 X$ a0 E4 M - }
3 C5 @4 S& |4 B5 p h0 I* \; n+ \4 O - }
8 \! g0 K: q' l - Serial.print("\r\n");
7 Q# _/ H" ^! @8 P& w" o: A7 O - digitalWrite(2,1);
* i( G3 e$ r+ h( K- J - Serial.print("IP address : ");3 |5 F' [2 Q7 _ c3 i `
- Serial.println(WiFi.localIP());; B8 J' ]; D! N' N+ w
- server.on("/", HTTP_GET, [](){% }% C+ [# k/ S' Z
- server.sendHeader("Connection", "close");' J* f1 w& P3 y# Q) g- u6 J1 n
- server.send(200, "text/html", serverIndex);2 q4 I4 Z& @. ~* m. O
- });
0 I- z5 }/ M- J5 Z& h2 J# \% n - server.on("/update", HTTP_POST, [](){' u0 k2 ^$ i" ]& Q P$ i/ J
- server.sendHeader("Connection", "close");
& W& L& {! k4 g9 b+ l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% U. B- U8 Q' W7 E& e8 x) t - ESP.restart();: k/ j6 \- A# w) r: T
- },[](){
o9 G8 [, }, o) h: x - HTTPUpload& upload = server.upload();3 H4 z( ?) n& E% E
- if(upload.status == UPLOAD_FILE_START){" M- i, o A4 g
- Serial.setDebugOutput(true);
% S+ g+ x( S8 B - Serial.printf("Update: %s\n", upload.filename.c_str());1 a; }& i6 h& E8 R
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" p$ h$ m) Z& ~) e7 J# ]
- if(!Update.begin(maxSketchSpace)){
! H7 }' z1 d; g4 q' t7 K - Update.printError(Serial);- ?8 D# l) S9 q7 t- K! ]0 C
- }! f* w5 \7 I& b, m% ~& k
- } else if(upload.status == UPLOAD_FILE_WRITE){
! u% n+ \) i$ e/ @) ?# c. ? - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( n1 h0 K( N+ g2 g" E - Update.printError(Serial);
& Z1 }6 s; c! B2 z/ L# Y - }1 k. e& H0 J# i9 M y
- } else if(upload.status == UPLOAD_FILE_END){
e9 }# B7 V/ v% m5 A/ r5 X - if(Update.end(true)){
. o( A0 ?) A$ ` A* ` L2 d - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 M$ V- S* _, x
- } else {; g' i6 v5 j K+ H, n( E. ~
- Update.printError(Serial);
& J# {* c Z* b' u7 f/ L; K: g - }
1 E7 y, m2 y1 `1 M' d! k5 Q - Serial.setDebugOutput(false);3 k! z; B7 [% t# B% r- m/ [4 E
- }& R1 b7 M/ E/ H$ r' w( y8 W
- yield();
' {0 x6 ]% ~ B) k& [ - });
" v- l8 ~5 ?& [" L# m2 m - # D" Z; I: a' }
- digitalWrite(2,0);
5 o* j8 ?# s* f1 o( ] - mainAction();
+ V* x* E' d: [1 v7 I$ \6 r - if (digitalRead(0)){. p$ w+ \! e# g9 v
- ESP.deepSleep(0);
1 m3 R1 V; b& L& q( Z - } else {8 |/ l+ r3 `! u& b+ G2 D. F
- server.begin();6 v; Z- q) V; K- F
- }$ M/ b( ]8 w. ?
- }
8 F: b' y/ }" p9 q% c - void loop() {
4 C' G1 w7 T I( @' h: ^ - server.handleClient();2 J- b; ^- T+ y' u4 w$ M5 ?. Y
- delay(1);
, @% b% I& j4 r. l - }- R) m+ b! [4 b$ ?7 V& S
- String doGet(String url){
1 K: ?# t3 E' Y, w$ j1 u - if ((WiFiMulti.run() == WL_CONNECTED)) {
( K2 e4 T0 o6 [! }8 o6 E0 j - HTTPClient http;# T5 h9 T. m! I# }% A. p
- Serial.println("[HTTP] begin...");
1 X2 _2 i+ F' X$ p( n' ^$ h - if (url.startsWith("https")) {
+ B8 D0 v/ L7 d8 s% w - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& ]1 j! P0 \2 m/ { - } else {
" b$ Z- ^+ _2 c - http.begin(url);/ W6 N4 Y. f1 f, l. K
- }- y3 Y) Y) y6 R: @- e
- Serial.println("[HTTP] GET...");
. c9 u/ I: \! O, r1 w5 X& S' c2 d( j - int httpCode = http.GET();
, _" r& G4 y: t+ b0 Q! G - if (httpCode > 0) {
- q- _# [9 j* m* i2 t& f7 A - Serial.printf("[HTTP] code: %d\n", httpCode);
. Y9 Y7 w( n* H' c H7 v - if (httpCode == HTTP_CODE_OK) {+ M/ k: Z6 D: D) K2 R2 T
- String payload = http.getString();3 y$ o. T! j. n1 e
- Serial.println(payload);5 `# T. j4 k( w0 `
- Serial.print("\r\n");
+ b7 n4 X8 E' l& W - return payload;
- n5 @. H" ?% E7 r! T k - }
& {( y9 X/ Y' i% i o - } else {
! z" `; A4 Q( t - Serial.printf("[HTTP] GET... failed, error: %s\n",7 f/ A, [$ _* e, {& J7 `. ~, @
- http.errorToString(httpCode).c_str());
- G0 N( c0 I* ]& v - }
8 n- I% a& z( y# o R6 o - http.end();
( U. ^) \; {( r/ f( h9 F5 j - return "";9 p W" \9 g5 d: T* }8 q
- }
% T- n6 r' }+ E2 g: s8 r$ u$ r& ^ - }
, R9 r/ W5 k, L - void mainAction() {1 F$ g+ b; z$ c t! e" ~, j
- // 发送请求9 m9 \1 t' c8 I6 h5 @
- doGet("http://google.cn");
0 q D8 C l" x! L - }
0 M4 _- l% B$ |& A$ J+ L
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