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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)
6 \1 o2 `9 n" d2 B- #include <ESP8266HTTPClient.h> e& c' x) `# q* X; x
- #include <ESP8266WiFi.h># F+ A1 w7 c# ?5 h1 N" a
- #include <ESP8266WiFiMulti.h>2 K7 V2 K/ P; P5 i. X9 R
- #include <ESP8266WebServer.h>
5 G# g8 Z+ Y( `1 w+ H1 L% K& t2 u - #include <arduino.h>, C$ r, f9 @' _1 \
- ESP8266WiFiMulti WiFiMulti;, y9 _- B @" h& Q) @
- ESP8266WebServer server(80);" |, ?6 s) k1 n/ s7 ?$ G
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: W9 l/ q' j/ }0 V1 F: ` O
- ADC_MODE(ADC_VCC);
. ^7 [- `6 }6 x9 z E4 Q ~ - void setup() {
* N8 t% c: N* Y* } - Serial.begin(115200);: t# C' v; X7 l& t. m
- Serial.print("\r\n\n");$ r4 C; a5 E, o& J! r! B/ Z
- pinMode(2,OUTPUT);
& R% O- Y$ F+ H1 q0 _ - // WIFI. x+ f0 W$ `. |
- WiFi.mode(WIFI_STA);+ [+ w0 ?6 D4 ^2 t
- WiFi.hostname("Sparkle");
) o: [# D7 ]; o6 M - WiFiMulti.addAP("wifi ssid", "wifi password");% s* R. N4 ]0 t( `. t5 C
- int tryNum = 15;
& ^7 U, [1 F) E- l* x - Serial.print("Connect WiFi");
. \& e% s) J% p& }6 w$ q - while (WiFiMulti.run() != WL_CONNECTED) {
2 Z- B) Q1 P6 q# d( Q7 ^ - digitalWrite(2,0);
1 R+ O7 d, e$ k7 f- Q+ n8 D' K - delay(200);9 `$ A4 r. F2 w
- digitalWrite(2,1);# h: F+ W5 \' r% q. V
- delay(300);) J* u: e0 j6 l6 h- |$ d
- Serial.print(".");( f0 W9 K0 _- V6 a4 V
- tryNum--;. G( \3 w: k4 T; @7 ^
- if (tryNum == 0) {- t" {: j1 u8 O A
- // 1min8 c3 k& o# x4 I; V( s% |
- // ESP.deepSleep(60e6);
# L( X/ w* [- |$ a( k( U5 F - ESP.deepSleep(0);) [8 ^ G7 R) h6 X$ G
- }
; _; D" c/ B( f5 ^# [ _, ? - }
6 }2 [, c8 k1 w2 @, ] - Serial.print("\r\n");
) l7 i5 t# h! Y" l0 ^' } - digitalWrite(2,1);; _$ N T! c/ B3 n4 u6 r
- Serial.print("IP address : ");* b3 T6 F1 Z% b/ b
- Serial.println(WiFi.localIP());
: i+ [! R& _1 h' p% ~- @ W - server.on("/", HTTP_GET, [](){
: T2 C! y: A/ c: s* g s* I' ^4 C - server.sendHeader("Connection", "close");
! P, ^6 K) h2 ^- v# K6 I - server.send(200, "text/html", serverIndex);1 E1 w# ~6 V6 b4 w p
- });
& q8 F: j- ^7 ], j. @. u+ L; _ - server.on("/update", HTTP_POST, [](){
3 T/ u9 e4 c `- }. [2 b/ Q+ ` - server.sendHeader("Connection", "close");+ G( c; h" ]2 A+ n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");& B4 v# U2 S! Q7 `9 x
- ESP.restart();
- {( Z* O) b( m9 D2 ] - },[](){
7 ~0 D( g9 r+ v2 h - HTTPUpload& upload = server.upload();
4 E6 z- U. p+ a2 X, W% N4 z% T! Q - if(upload.status == UPLOAD_FILE_START){: E. c# \; G3 ]- \* t
- Serial.setDebugOutput(true);4 p4 u, N5 X, d2 N0 y
- Serial.printf("Update: %s\n", upload.filename.c_str());( p& l2 d1 x3 Y. d* W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 Q- E3 C; R$ e+ z0 J - if(!Update.begin(maxSketchSpace)){
# c$ ~9 S% E( {' D& z - Update.printError(Serial);4 I) {7 F' ~% U, H, @! d, ?
- }) x+ m4 m) U1 z
- } else if(upload.status == UPLOAD_FILE_WRITE){
: Q( z M" w, | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 t% I/ h7 r1 I G- _# R% W
- Update.printError(Serial);; Y x" N* {+ U0 }& l% D7 T
- }
' [+ y0 V* q5 r* {7 i& F; S! ~' ^% e - } else if(upload.status == UPLOAD_FILE_END){
6 a5 e- i+ H! W+ I3 ]3 a5 @% X& v - if(Update.end(true)){
/ e' R& I2 W6 G - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! g+ ^- C* A; G# z( N - } else {
! m! ~3 p' C2 |6 h, X. \0 Q - Update.printError(Serial);
' [9 D; y8 j0 w8 C2 M) A0 T3 L - }
. h* I! P! k4 y' T: z, V - Serial.setDebugOutput(false);
2 L+ N) x) f: V, _% S# G$ E - }9 ~9 Q: V$ V) j3 l8 z( G+ q7 k7 N
- yield();& z8 H# h$ h& `" ^9 d. N+ y' T
- });
) P h4 W/ D) w - 1 C S$ `; H4 z; X2 Y' V" R, i
- digitalWrite(2,0);0 y2 S1 \! `" |
- mainAction();* o, s$ c/ j+ Z5 G+ Y) Y
- if (digitalRead(0)){& N% K: z1 `% ?0 ^1 w
- ESP.deepSleep(0);
9 s ?/ k/ y0 ]- _, j( L% H - } else {
7 A8 w4 b7 r& G; m - server.begin();+ E5 _. ~0 d& B( P+ o s9 q
- }
: p2 _" e# i. w - }8 z4 U3 u. L! u7 J& ^
- void loop() {4 F G& _) B6 n @* g9 e5 k
- server.handleClient();
$ _5 Z2 M. Y- Z/ s' E+ t J - delay(1);% B7 f7 e4 j5 o/ M+ E
- }. q4 e. l2 F l& s
- String doGet(String url){; n( o4 K* y/ l$ d+ z( K
- if ((WiFiMulti.run() == WL_CONNECTED)) {( q7 ]3 I$ S- ?# x( s( r
- HTTPClient http; x1 s$ A8 Y! o- \% \) e
- Serial.println("[HTTP] begin...");# C s: ~) \% U5 y& B
- if (url.startsWith("https")) {
1 }" S! _+ V) ] - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% D# K$ e6 g1 [- J. v# ^% j - } else {
6 K; q9 b6 e% w6 W. L' { - http.begin(url);
7 k3 n+ G& @# m" f - }0 l1 d7 R: f2 N Y3 w+ d: X
- Serial.println("[HTTP] GET...");2 M6 y. X4 b* W, [3 W4 F( G' o
- int httpCode = http.GET();& o% o% F: c( |+ o( Z% Q3 i
- if (httpCode > 0) {
- Q" \: x# z& I( j8 G, Y v - Serial.printf("[HTTP] code: %d\n", httpCode);$ x5 S1 J7 g/ @- Y# W
- if (httpCode == HTTP_CODE_OK) { E- D6 P, k0 V `+ S
- String payload = http.getString();2 F8 E3 J2 z1 G* y. m" U
- Serial.println(payload);
" j3 l1 ~3 b+ _$ V& G! L - Serial.print("\r\n");
% t; _4 o- m: T5 n6 K: q - return payload;7 e8 F' O5 y) M9 j u
- }- r F, ~/ W( [
- } else {3 q t: g% A$ G! q9 [9 q
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' e) g! e) C8 ^; w0 l - http.errorToString(httpCode).c_str());
4 Z. S8 E0 [- A% W' Z- J/ X R( N - }
$ }- A* n9 O% Z% x. o% \$ Y8 \8 @ - http.end();- m* x: ?( t# P$ S. ~
- return "";
& g' g' ~* A6 s" |1 B - }
7 Z7 M. Q' H! {, w, z - }6 d2 ^# S$ W; a: c& _! P0 q
- void mainAction() {
; H0 ~) R3 T( e* u - // 发送请求; `* k: I4 F2 Y% p8 L4 P0 [. Q
- doGet("http://google.cn");
: @) R* N2 M* u- _ - }
: j: X) T8 s. C+ w$ X8 O
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