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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)* f2 @9 _- C* S8 d# D
- #include <ESP8266HTTPClient.h>
. F1 C' }9 E/ G) \ - #include <ESP8266WiFi.h>: H5 [; o ]$ J6 u/ B& Z2 l y! t5 R
- #include <ESP8266WiFiMulti.h>
0 h0 C( ?+ ]% x. V z - #include <ESP8266WebServer.h>( X; g" @" f' L) I& i
- #include <arduino.h>
3 G6 @9 P4 y# z2 q6 T0 j - ESP8266WiFiMulti WiFiMulti;
2 |, e! I; p" f: Y# R' a+ h - ESP8266WebServer server(80);
$ u p% P N- w' V0 G+ z1 b2 y - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, o5 U. R0 u) ]8 @7 q' G
- ADC_MODE(ADC_VCC);
" D- @ t) g" L( n$ N3 D - void setup() {% R- s' A: m" d& T' v2 K- t& o% l
- Serial.begin(115200);8 o* o3 {" u6 @' T# E9 O
- Serial.print("\r\n\n");
# |) N$ C/ @6 M6 s; V - pinMode(2,OUTPUT);' E4 _4 y M/ v0 `' b! ^! H
- // WIFI, d6 i1 H( Q4 Z" i) U
- WiFi.mode(WIFI_STA);9 K/ m) J# O! P8 ? i! A! M
- WiFi.hostname("Sparkle");
# I: { i& ]% C' x( N$ A - WiFiMulti.addAP("wifi ssid", "wifi password");# H& M. ?6 e5 J) v+ v F7 N1 p" c
- int tryNum = 15;
1 N8 V0 [9 R- H+ n3 [6 a0 _/ _ - Serial.print("Connect WiFi");% P K9 N- k* L. L. R
- while (WiFiMulti.run() != WL_CONNECTED) {
( X- h0 Q# b8 y2 r3 m - digitalWrite(2,0);% B2 H# j# t1 N( T8 a' C
- delay(200);
( p% X q& K( ?4 x7 A* D - digitalWrite(2,1);
" @; \. G, z7 m+ v - delay(300);5 Y s4 [; z9 J7 I9 i/ b
- Serial.print(".");1 `3 t7 b1 Z- y- b% S0 V) u
- tryNum--;
$ X/ g f+ }2 q& f - if (tryNum == 0) {
. L& G3 F8 ~0 L1 O a5 X" J - // 1min
3 o8 i" S: }1 W% o: Y" } - // ESP.deepSleep(60e6);: v5 W$ ?% ~& w/ d g/ I. @, w) p
- ESP.deepSleep(0);8 ?% ~) O6 i" q* V6 W7 y
- }5 `! }8 z8 `6 I* u' M, O
- }
2 |, Z8 d3 G# L: ] G8 D - Serial.print("\r\n");7 x$ {! |$ \$ w7 t" n0 ]! ?3 t
- digitalWrite(2,1);2 Z* ]! N% M7 O4 S; ]
- Serial.print("IP address : ");
3 @: `. n( H/ c0 n - Serial.println(WiFi.localIP());. B3 V( z) O% Y9 m: x4 b
- server.on("/", HTTP_GET, [](){
) O9 H; P0 S& l0 s+ i+ J5 a - server.sendHeader("Connection", "close");* Y# d- Z6 j3 l6 @, u
- server.send(200, "text/html", serverIndex);' k* d, j! c. x
- });
* w/ U( f6 |# P2 V# Z" ] - server.on("/update", HTTP_POST, [](){
! T! m- s, z: e$ W. E9 n7 S | - server.sendHeader("Connection", "close");
! m K1 c6 r) _& n0 m - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
w2 Y, X6 d1 A, ] - ESP.restart();6 b8 g: ?+ V+ Y3 C- K' ~' D/ A* k- Q
- },[](){) P) y6 f {& {; ~
- HTTPUpload& upload = server.upload();
" q# c$ i6 L( D; R4 N& ?8 m - if(upload.status == UPLOAD_FILE_START){
, k9 P1 ^! K8 E/ r: _. s - Serial.setDebugOutput(true);8 a0 y9 ?& T4 m, I
- Serial.printf("Update: %s\n", upload.filename.c_str());+ d; Y* i% E$ q. O
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 w3 [2 k! g( d, ]2 A& u) h; j4 K& T - if(!Update.begin(maxSketchSpace)){
' y+ N, ?3 w: G5 k - Update.printError(Serial);
. V: z( u1 i6 M' Y+ O - }- b5 \0 `- e1 [% u! f( X+ z
- } else if(upload.status == UPLOAD_FILE_WRITE){, s" w& I1 j/ g, p6 }
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 z/ [" ]1 w# T3 M0 y8 b* R - Update.printError(Serial);- r8 V9 X5 q$ K a) [" ?6 D
- }
* b7 V1 Y) i4 s. t E: x1 X - } else if(upload.status == UPLOAD_FILE_END){7 P' }4 d! Y% D
- if(Update.end(true)){
& X( {4 u; z! _' T, W6 T2 T: I1 _3 D - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 J. |. c. t, F. \$ q6 ?
- } else {3 m. M( n+ {7 q
- Update.printError(Serial);
5 k: a7 U5 {6 A# b% C% ^ - }
9 A5 q- b. _/ u2 Y1 d, t2 i - Serial.setDebugOutput(false);
I" ?8 i( ?2 Z9 K. s( W& v - }( y. \7 R+ o6 E6 K
- yield();5 b0 H7 w. U! I7 ~! ^( G
- });
0 _7 S# L! A) I& R$ l- u -
! ]0 ~* w( @ w+ J' C# }7 i - digitalWrite(2,0);
8 ^: [/ l$ Q3 z( I2 R7 U4 M W1 y - mainAction();
1 V$ V9 t& A1 O2 s5 @; J - if (digitalRead(0)){" F( X: e' A* C, h3 s8 F
- ESP.deepSleep(0);
( Q: ?' x. ^/ D - } else {
: T/ D1 Y# r9 B# {3 c4 z - server.begin();
. ]: I' x! x9 m) X - }9 r0 ?; B( ^6 G" w
- }
! N9 K& C; v3 T2 X: o4 w' t5 E - void loop() {" X, V2 Y' `0 _$ J8 n
- server.handleClient();3 Z, \3 o; ~6 B
- delay(1);, r' |( g% g- H5 B- U7 ?
- }
4 G$ k% C# \3 W/ a6 V* P - String doGet(String url){
3 D8 B9 y8 T. _7 P& g - if ((WiFiMulti.run() == WL_CONNECTED)) {" w7 y T6 L; O' \8 e" ]
- HTTPClient http;) }' J1 k6 T8 q4 e. I, z( I
- Serial.println("[HTTP] begin...");
2 g3 R) m- `3 n( [+ ]2 N7 Y - if (url.startsWith("https")) {
7 t6 l& Y5 T& l, Z" k5 C - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
`$ c+ i4 O; z u - } else {
: r: ]2 }4 k9 {" h6 V - http.begin(url); V, o5 Q! P% k# p4 @2 q
- }
s* p, m6 Q& O f" @0 | - Serial.println("[HTTP] GET...");$ @. K' P+ `/ a6 H
- int httpCode = http.GET();) g; X8 Y, [* D: i( J
- if (httpCode > 0) {
6 Z* S: K* n' B/ E, \/ p+ T - Serial.printf("[HTTP] code: %d\n", httpCode); w2 ]6 s3 i% j! Q: o
- if (httpCode == HTTP_CODE_OK) {
3 R- Z4 _3 \# { - String payload = http.getString();
4 z5 e* b7 p: W4 p - Serial.println(payload);
* v) V+ r" [& v3 G: T& [( a - Serial.print("\r\n");
; H1 }/ [8 s/ m6 b0 _& `7 S - return payload;
; O S E' |! L- b% @) [ - }. R' `) t7 o8 }- L: Y P& L
- } else {
8 E% |2 Y* z# R! p. {) g: N - Serial.printf("[HTTP] GET... failed, error: %s\n",3 D9 r& T% O1 s: @7 d; O/ |
- http.errorToString(httpCode).c_str());% }6 [4 Q4 q0 q- F
- }
4 @, ?! q6 ?$ R/ N1 B1 @: h - http.end();
+ y. G, ?' S, B1 s$ p3 H) z - return "";
/ r1 o4 i) W5 U7 W: Y( y7 z7 o - }
' {2 {7 M+ {/ J# d3 \" \4 O7 s - }
, T+ k9 _6 T9 X/ h/ H( p: G - void mainAction() {
' c+ @+ {0 H1 r; O - // 发送请求
8 C) u2 N, ?1 G$ z1 J - doGet("http://google.cn");1 O3 Q- f" _) W& A$ r! U* n
- }
9 k- w! V! \* F: g6 t- D
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