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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)
5 g1 m4 y) ~; U$ c, `, @" V8 f- #include <ESP8266HTTPClient.h>8 m7 Y( Y- E7 k5 ]5 ]
- #include <ESP8266WiFi.h>
. N4 {! C* N. M# i0 ` - #include <ESP8266WiFiMulti.h>
- l6 P% M; j8 O - #include <ESP8266WebServer.h>
/ V* f {2 Y+ Q: f$ [, F - #include <arduino.h>3 ~& E' {2 C, I, s% ^8 u
- ESP8266WiFiMulti WiFiMulti;
* J f( N/ v' o5 S/ W9 N - ESP8266WebServer server(80);7 E6 G# i v' t5 k# P& x( n
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 p% d* m& h$ E, A& J9 K$ Q
- ADC_MODE(ADC_VCC);5 o& r. [' J+ ~/ u
- void setup() {& q# \: l3 }) L, O8 _
- Serial.begin(115200);3 g- r( R0 h2 T* N9 ^$ ^4 }1 B
- Serial.print("\r\n\n");
& H% {" ?1 v. T/ i" r! h5 n- u - pinMode(2,OUTPUT);
" r, B' q/ d, G# B - // WIFI
1 @6 J5 c. O r# c& l$ V r) P& Y* b3 ^7 ] - WiFi.mode(WIFI_STA);# \) B; v! ]( z2 o
- WiFi.hostname("Sparkle");6 {' B; J1 [/ @+ l
- WiFiMulti.addAP("wifi ssid", "wifi password");
/ a/ q2 I4 H1 [& ]. l& q6 F - int tryNum = 15;0 g* T+ F: C5 J! P4 p2 I
- Serial.print("Connect WiFi");% _! A7 v- ]( C6 h
- while (WiFiMulti.run() != WL_CONNECTED) {- `- R* g" T4 `# W& n
- digitalWrite(2,0);
7 \% w& S7 P1 q8 Q; d1 H0 i6 E - delay(200);
# K- j9 ~3 Q9 u- q" k6 O3 C - digitalWrite(2,1);
8 G4 L% D4 d/ p3 n - delay(300);. i- N4 r; D T: M) m: _) T' q
- Serial.print(".");
- P0 d. l" |1 R6 d6 ~1 {# c& [ - tryNum--;
- v- Y r( C; Z' u4 @$ P) T+ ] - if (tryNum == 0) {
$ p$ n. w$ `; `$ O9 u. w3 |3 ~ - // 1min, B# m9 ?( [1 ~5 Y
- // ESP.deepSleep(60e6);3 D7 T+ @: {/ w! c$ Y
- ESP.deepSleep(0);
4 `9 c' K' s7 P/ g7 T* Y& P - }
" K1 t$ B- ~! `, `0 R - }2 J# z- g. |5 R: m
- Serial.print("\r\n");4 A. T* n8 `( s' Z$ a( U
- digitalWrite(2,1);' k; ?* t, ]9 d# D
- Serial.print("IP address : ");
5 C0 d- |8 h( s3 @5 S0 Z& b - Serial.println(WiFi.localIP());
$ C% @. S! ^4 T# B, T, Y# F - server.on("/", HTTP_GET, [](){
" `* u0 h" ]/ B7 ] - server.sendHeader("Connection", "close");
3 |/ H, |7 f5 F+ r* m - server.send(200, "text/html", serverIndex);
* p$ V F9 i+ R8 U - });
* c# W- {. m2 b6 k8 H3 J( c - server.on("/update", HTTP_POST, [](){- k+ K+ z, n8 C/ h
- server.sendHeader("Connection", "close");/ C3 |2 B* \8 }7 j( Z3 D6 t' B" I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 P7 R( y; c3 |& [8 b( Q - ESP.restart();" d0 ]; ]+ i8 h% J+ N6 _
- },[](){
& a1 F0 F3 @, c! b - HTTPUpload& upload = server.upload();0 g0 m9 W0 X, J, R
- if(upload.status == UPLOAD_FILE_START){6 k, M0 k e3 t: x
- Serial.setDebugOutput(true);
/ |1 ^# [! V; m4 ` - Serial.printf("Update: %s\n", upload.filename.c_str());& N0 [5 c8 p5 `0 N0 U- Y ?+ s
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 _' W3 O9 M$ K0 p - if(!Update.begin(maxSketchSpace)){3 P- O* H W- A; g# B+ a* Y
- Update.printError(Serial);4 R7 o; E: t1 s9 z6 p# K" Q
- }3 C/ |! X. \( B# o+ X4 R
- } else if(upload.status == UPLOAD_FILE_WRITE){* J% M/ r- h B, g' b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 s) R0 y8 L6 l
- Update.printError(Serial);
% j' }! c9 l: y* I' p9 i" Z - }' E9 e p- [8 ?+ R( a" v9 d
- } else if(upload.status == UPLOAD_FILE_END){
* J2 D8 B; J" Q6 t& t - if(Update.end(true)){' W8 J) g7 f. [' E! F1 i( Y- b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% \7 v6 i* _ Y$ E3 s. G1 C
- } else {
+ B: e# H5 M$ C1 O6 x i. g1 X - Update.printError(Serial);3 _+ k, S: \ p0 h
- }$ y( m2 z8 y f4 N# ^1 S* K C
- Serial.setDebugOutput(false);
1 \' m, Y: R& G5 A* Z- _ - }
4 v6 p% {" ^3 ? p/ S* `, h - yield();! s" h6 t- S+ @( y+ g
- });
7 \/ n( F% i4 U: F -
/ d7 X4 N1 v7 g$ ]# r - digitalWrite(2,0);4 k' e8 p- ]! @# C [% r6 \- u
- mainAction();2 G& d' d( S/ p( p
- if (digitalRead(0)){
$ y5 m& G) ?6 H7 @1 u - ESP.deepSleep(0);% t q/ C0 C2 w$ E
- } else {
5 X' Y( W* u. [6 r - server.begin();7 e5 D; p/ E: ^1 L
- }( ?* X) s; ^; N
- }% w d+ d9 Z l5 h2 c0 ]" D$ u
- void loop() {
& c1 d2 O; S! o# R( }" n5 y1 K - server.handleClient();
1 ^ n5 k5 q3 t$ K, c - delay(1);
1 J/ D4 c% Q: ^3 j - }8 Z0 K0 j$ Y/ E9 m* V' J6 z
- String doGet(String url){
6 T5 i( I3 {5 Q+ v# E: v3 b" u - if ((WiFiMulti.run() == WL_CONNECTED)) {3 G3 y% r) f6 }# R( _" x0 K1 t
- HTTPClient http;$ n0 C+ P4 ?+ y
- Serial.println("[HTTP] begin...");: o8 l; x' P s; B5 H6 A# l
- if (url.startsWith("https")) {( M) Z$ I1 d" K; Y: k' @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* o/ i5 B( g$ B. z! A - } else {5 U2 o# B; p7 H
- http.begin(url);
" L/ l0 ^/ k6 y) t2 O, T - }
: ?% z `1 z8 V K - Serial.println("[HTTP] GET...");
( T8 x0 C6 U& P, n# e( _ - int httpCode = http.GET();2 C6 W' G! O( x
- if (httpCode > 0) {
7 g" r( S8 x S2 R: ^4 S2 p& C - Serial.printf("[HTTP] code: %d\n", httpCode);5 S$ E% e$ D% R7 R+ B
- if (httpCode == HTTP_CODE_OK) {8 N- G9 b# b$ s# R0 I
- String payload = http.getString();; B. L+ k/ C1 b5 u
- Serial.println(payload);
3 C( m$ X, l8 }0 ^+ o - Serial.print("\r\n");
+ m0 }) L' }, b7 t& `& i- f - return payload;
% P. d+ T }- X0 Q, Z5 @ - }! @: b1 X3 V5 ~- x" B1 V8 k$ n
- } else {
/ Q3 k1 x i1 p0 S- [3 E) R8 v - Serial.printf("[HTTP] GET... failed, error: %s\n",4 {8 @3 N8 b8 y6 M: H
- http.errorToString(httpCode).c_str());2 r* J+ {1 }7 ?/ X# q8 B: b$ V
- }
) ^& c( V4 m7 X/ ^8 R, V1 ] - http.end();
% N) a3 Q0 b/ i# W1 g0 K4 W, P - return "";8 J! ?7 g# `; D( s& m* t
- }, l. Z* B3 ]. d$ @ d. R* e' F
- }$ c0 J- W% ?8 |6 }% l
- void mainAction() {- k" \% Z" |3 L0 \; R7 `7 ~9 Y `: P2 {
- // 发送请求
% J4 S# t# C' e - doGet("http://google.cn");3 X( S: @: _# x2 u* n8 d
- }& n/ x# g, H9 s/ K
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