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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); x9 m/ @" U# N# D
- #include <ESP8266HTTPClient.h>4 J3 L1 j2 _* X. ]4 c
- #include <ESP8266WiFi.h>1 c6 O+ q r2 C ]5 x0 j- S
- #include <ESP8266WiFiMulti.h>& c1 B5 H( C7 k2 [$ A5 h
- #include <ESP8266WebServer.h>6 B& h4 H+ A# s: C1 e b* f+ D8 ^
- #include <arduino.h>$ d7 p8 u; P/ m
- ESP8266WiFiMulti WiFiMulti;# \! x' o: h3 c) I* {$ Q" p
- ESP8266WebServer server(80);: `3 f) i1 p1 ]$ N( U- T1 X* z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ D& [, b8 k5 u4 ^0 j - ADC_MODE(ADC_VCC);
2 L7 O/ B: B; r! k4 e - void setup() {/ R I- ^/ G: l' }! H: s4 U
- Serial.begin(115200);: o' j/ h/ ^, q
- Serial.print("\r\n\n");
# _+ A2 \# `4 j+ n" ]8 Z - pinMode(2,OUTPUT);
) x u: q$ W, Q: n$ y0 b - // WIFI* G) a# A! [; `9 M" i" }
- WiFi.mode(WIFI_STA);
9 o* K: z$ O+ i- | - WiFi.hostname("Sparkle");
' ^4 O x% w+ o( R - WiFiMulti.addAP("wifi ssid", "wifi password");, ]$ X& X$ [0 j3 N- ]# W' w
- int tryNum = 15;
# s1 m+ }, k4 d - Serial.print("Connect WiFi");9 o0 v3 }1 U5 m D9 \
- while (WiFiMulti.run() != WL_CONNECTED) {1 `. S" m! ~, R6 v( c2 a) L
- digitalWrite(2,0);" r! p! q- {/ x8 d& R+ i4 N
- delay(200);
2 x/ L0 _4 b8 m3 F1 q+ c4 g! t! o - digitalWrite(2,1);9 H! Q8 K8 \4 t; M0 Q8 d5 s, M* E
- delay(300);
( r% R# Y v3 |6 ~0 d6 H# A4 k - Serial.print(".");
; b" c8 W; @2 D5 }; D; M - tryNum--;
, `4 J. G4 y t9 V - if (tryNum == 0) {
, n! I1 d/ m, x6 t) r4 P* ?( I - // 1min
$ a/ t e" f3 K0 Y0 k - // ESP.deepSleep(60e6);3 N. Z: x( M- N: M1 ~3 p8 w
- ESP.deepSleep(0);" I- R, R2 o5 b$ E. P3 w1 T
- }
! ~" j; Z; F: H' z6 A' U2 r - }
' H1 }- M' W$ S - Serial.print("\r\n");
( K( `/ R6 W, j, h- R. j - digitalWrite(2,1);
, V6 O. m2 s5 s, O% I6 W - Serial.print("IP address : ");
6 d6 i- x& }; K9 H - Serial.println(WiFi.localIP());
2 m. F: y- [0 n9 h$ i4 P - server.on("/", HTTP_GET, [](){
+ [6 j( v+ ?3 W; N$ b - server.sendHeader("Connection", "close");5 e. _# _ O$ q* @+ O; I* e
- server.send(200, "text/html", serverIndex);
+ u+ O; g* a3 C$ l - });
2 q7 Q+ M1 C9 H) X- |) f - server.on("/update", HTTP_POST, [](){
1 I9 o7 \6 E, t1 ^& K5 b - server.sendHeader("Connection", "close");" l- H1 i7 |& }& D3 u" e/ v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! g- S) m' k4 @3 e& s
- ESP.restart();/ Y% a& S, w0 Z" [+ b" b8 o
- },[](){
$ R% @ j" o* x* b" S - HTTPUpload& upload = server.upload();
; |1 G' b0 Q$ U& a* [' W: M - if(upload.status == UPLOAD_FILE_START){
" L+ o+ v" t# Y2 z0 w9 _+ v# B; M+ ~* T - Serial.setDebugOutput(true);; ]0 i' ^2 Z6 r( h, L
- Serial.printf("Update: %s\n", upload.filename.c_str());8 b/ _' t7 R. G! L
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 p3 X. N8 O* d& m& Y
- if(!Update.begin(maxSketchSpace)){
1 s. v- s# ?6 W" O/ A - Update.printError(Serial);$ } W) Y/ z* q4 ] T4 T- X
- }" C5 h' h. f0 E' H6 s
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 T7 U8 q$ i5 d( I6 X - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 x* q8 l* U( A- ?9 ]- v% O
- Update.printError(Serial);
1 @; {7 I0 }8 e - }
2 ` g& L+ s% _1 x, T - } else if(upload.status == UPLOAD_FILE_END){5 z# {# X h" A! u7 `2 g2 ?& Y
- if(Update.end(true)){* {2 t' H* ]2 t3 O k. f
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' r6 I& |" R( `% j0 t - } else {
3 l# B C" c7 o( ? - Update.printError(Serial);+ U& p4 _3 _) D, b- n1 D
- }
! v7 F: W* o2 r/ W! p+ \ - Serial.setDebugOutput(false);
# K5 m, c+ j4 V - }
; a& m: a0 I3 x4 X9 W- K8 C - yield();
5 |6 D6 @7 h1 }! d; j5 x. w4 R - });
* t% i: y0 v7 s$ N8 g9 B5 x - " S0 S l. V) _8 l9 [- W
- digitalWrite(2,0);
, K0 t, x/ x% T! m3 T: K - mainAction();
/ X6 N2 A9 [& G* N9 a* R+ u9 @+ H - if (digitalRead(0)){" U! J) L# r# H' k( e u
- ESP.deepSleep(0);9 B5 t* D' @0 K
- } else {( q. u A2 x( h! M
- server.begin();
$ }4 ^4 O8 ]; r4 { - }: d! P, [8 b/ h% r7 x# m# K
- }
# B9 F% B" N+ [) Z+ q1 r+ C - void loop() {
7 L2 a5 d P+ e; ^- K$ n# ? - server.handleClient();3 K3 D( W: m+ n7 z$ {. ]9 o2 i
- delay(1);0 w1 f% k2 Z5 ~" y
- }
: Y0 k9 R1 D; C7 N - String doGet(String url){. v4 U; e* Y) b; b5 v
- if ((WiFiMulti.run() == WL_CONNECTED)) {4 g0 _, P" I$ s" @# U" I" X5 l
- HTTPClient http;
. R% D. \! }1 N- D2 _1 b* ]8 T - Serial.println("[HTTP] begin...");
7 W* F8 n" A" V; ]% B; v. m3 a, e - if (url.startsWith("https")) {# b- O7 A& p* N8 a0 ^& C9 ?" I
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: H) w* }1 I# X) G5 m
- } else {3 t* d3 H1 C, ^9 j+ b( v5 B
- http.begin(url);1 o# Y9 X- v, u7 J. x& k: g
- }
6 K' ^& ~; a! h. u& b% T } - Serial.println("[HTTP] GET...");
; q1 k- E1 G8 x& n6 ^( u8 H$ F! s( @ - int httpCode = http.GET();, X# g2 \4 Y1 l o+ }
- if (httpCode > 0) {. Z3 j8 G+ ~2 p5 v! Z9 y' i
- Serial.printf("[HTTP] code: %d\n", httpCode);
1 o0 u" ^ h/ p# h1 t9 o. F - if (httpCode == HTTP_CODE_OK) {
' N( s3 A8 _3 ], L% I - String payload = http.getString();
* j4 M+ y! w" R& n! S8 c' K - Serial.println(payload);
% |/ n; d( b% j2 v" O# P$ r! O; i - Serial.print("\r\n");! l H' Q: j8 p# P
- return payload;
4 I- t& b' d5 ]0 r1 C: G2 x( R - }) A( @+ F6 Q5 D+ R# f8 F. q& d
- } else {
- r5 u9 s2 H+ `2 I7 W: u+ i) g - Serial.printf("[HTTP] GET... failed, error: %s\n",& q1 U" \' u$ R7 @( B. }
- http.errorToString(httpCode).c_str());8 h5 }: f5 h" [4 U! V/ z7 a
- }8 o* W' J# }) o8 z i5 @3 F
- http.end();
$ e" X u$ m5 [( h$ a& B - return "";. Q' M" W* q! s# h8 b4 o% _
- }
9 D/ [ Q( {/ g6 Y, Z - }) [1 f1 c, ]5 Y1 v* q* D( U
- void mainAction() {
% r9 J% s J( l8 I9 T& ^ - // 发送请求
. ~! L8 h# _, [0 q - doGet("http://google.cn");6 K1 c$ S( O0 J9 U# O2 o
- }
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