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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)
& V0 A4 m& j& h. |, j+ i8 U- #include <ESP8266HTTPClient.h>* h$ M, `& r" f# _
- #include <ESP8266WiFi.h>
6 |% K$ s0 m9 w% w/ \# l0 y - #include <ESP8266WiFiMulti.h>2 Y( \8 D- K k3 b$ ^6 S
- #include <ESP8266WebServer.h>
) C; U5 M& j3 V r - #include <arduino.h>
2 Z: a, R; |! @1 J7 s& ] - ESP8266WiFiMulti WiFiMulti;
, L) }% ?1 p+ P - ESP8266WebServer server(80);
4 G2 p) g, ~2 t - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 S- U6 q* p( u G( z# j$ \% u* o
- ADC_MODE(ADC_VCC);3 i. d; o0 a, P4 o! O/ |& p/ S. M
- void setup() {
) `2 |6 J1 i6 S' ]+ m% X. b - Serial.begin(115200);
3 w7 h0 ]: F" z - Serial.print("\r\n\n");! `) |; b' \0 F2 J8 W8 d9 K/ @6 w. t) O( B
- pinMode(2,OUTPUT);( J; N/ b; }/ S2 y2 o
- // WIFI
3 g* a5 c0 {" w8 l; L% T - WiFi.mode(WIFI_STA);* r4 Y6 U4 s# f: |8 c; f5 y+ c/ a2 q {
- WiFi.hostname("Sparkle");! l! z+ F( y( i7 z* D
- WiFiMulti.addAP("wifi ssid", "wifi password");6 y! y2 K- Z* [ ~) J
- int tryNum = 15;* |2 \0 z ]( F1 i$ {
- Serial.print("Connect WiFi");: [; J! ?+ {7 R4 ^) e9 \$ D5 J
- while (WiFiMulti.run() != WL_CONNECTED) {
8 y9 J& O! z0 D6 O% l - digitalWrite(2,0);( b8 @( s% \$ d1 e4 b7 A3 T
- delay(200);
4 E2 k, u; ~7 H: ~ - digitalWrite(2,1);
: \, h7 \; m3 e5 z' `& J) Z - delay(300);. j* k: B: v0 [0 C' p
- Serial.print(".");
- \) b# Y- @: @* z. O1 I; R - tryNum--;
" c3 H# r; B5 _: s9 W2 d4 w - if (tryNum == 0) {4 R7 o( s. B8 X/ `; R% X; P
- // 1min0 T/ \/ X! ^" E( y1 h
- // ESP.deepSleep(60e6);
) G5 V* @' W" z! F - ESP.deepSleep(0);
# K, P0 U7 D* e2 P7 w: [- @ - }0 q4 u( i$ h8 ~& ]/ G3 L1 f
- }$ k; J d& v; f9 ^2 U4 k) ~1 T
- Serial.print("\r\n");0 r* K9 o) P" v- ~+ M) x) u! G
- digitalWrite(2,1);
# L+ a$ U/ U- M. ^ - Serial.print("IP address : ");
6 p6 Z+ R) W: L, \9 V) t - Serial.println(WiFi.localIP());
6 E5 T* i& L# k% A - server.on("/", HTTP_GET, [](){+ M; y6 a# t% B
- server.sendHeader("Connection", "close"); a! `( x( O( I) U9 m& E: V( v
- server.send(200, "text/html", serverIndex);$ D! g" |; B3 v& { J
- });
/ C& \8 z$ U$ G# Z! q - server.on("/update", HTTP_POST, [](){
t5 V& W9 s6 P - server.sendHeader("Connection", "close");
( k. E& e1 V# \. ~5 g p - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# S: J5 o# c% S3 B' i- o/ I - ESP.restart();
; O5 u' l2 t. r; `+ r1 s4 [ - },[](){& S+ l' j+ E! Y$ `& f% p
- HTTPUpload& upload = server.upload();
1 Q& V# C, |* [1 ~3 m. a" h - if(upload.status == UPLOAD_FILE_START){
) ^) L, M% V# y# n: a - Serial.setDebugOutput(true);) F% r9 ]* q! B1 k7 Q
- Serial.printf("Update: %s\n", upload.filename.c_str());+ D- J6 P' T+ }$ e* z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ ]! m) j& p! h: N# [+ ~, \ - if(!Update.begin(maxSketchSpace)){
/ I: ^# l3 S, l4 r - Update.printError(Serial);
. Z+ s1 w0 B7 a( }; s - }
* A* s c9 F9 A# J! l, }" { - } else if(upload.status == UPLOAD_FILE_WRITE){9 Z( O. p/ A U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 ^4 n. G* P% ?4 c: W8 ?) D: y0 x# s
- Update.printError(Serial);
. G! `8 F9 U* ^ - }, f7 l6 p) x2 H& r
- } else if(upload.status == UPLOAD_FILE_END){1 V+ j$ r. c" r% }. M( `/ I' x
- if(Update.end(true)){$ J# X2 J8 A7 x0 Y' \
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: Q o# y3 x) V8 v( y* q- ~. `1 j - } else {
& g9 b- u$ N, I- H3 y0 \! ]# i0 k - Update.printError(Serial);
9 @/ K# M1 a# W1 ] - }
# [* C# P; i k) z - Serial.setDebugOutput(false);9 Z( N% D2 J/ H9 r7 W
- }
- e. u; ]* A' J, C3 D - yield();2 r4 G9 g8 V* E
- });
# o$ \9 V% t) z$ r' j8 ~ - G" x8 s) B! x+ ]
- digitalWrite(2,0);
2 F, |7 A5 |9 r0 q0 Y2 y - mainAction();$ z' ~ q# k* O& \8 J# }
- if (digitalRead(0)){
6 e8 n0 Z# [( k7 W$ ] - ESP.deepSleep(0);
+ s4 M) v5 \" _% q' {0 h - } else {
8 C4 x1 I' J3 }! W! v - server.begin();
1 B. t. v( K8 k, {5 n# K; K - }( b9 X+ A' k2 P4 |# V0 N# a
- }! C. G4 @' E( J
- void loop() {
8 f9 [8 B9 ?5 n; F - server.handleClient();0 p8 u+ r k+ C1 k
- delay(1);
, m! f+ U9 m8 T- m! U4 f - }/ x* K, v L2 e: d+ w
- String doGet(String url){
) D& c3 }7 r+ c- y# \ p# M - if ((WiFiMulti.run() == WL_CONNECTED)) {
& F; G Y2 }1 T+ ?/ l4 ? - HTTPClient http;' ^ i- Z0 x4 K8 D
- Serial.println("[HTTP] begin...");6 l* X$ k. m- d+ r/ T2 Z( Z! B
- if (url.startsWith("https")) {
3 F. d, ]: c: n0 H. f5 t3 y' Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 Y8 E. R& e3 g$ M4 V$ m* W - } else {
- r d1 v ~3 R0 f5 L" K - http.begin(url);! S1 b3 V) S, X5 O1 E/ b1 [7 i5 P
- }/ ^" i/ G! Q: F5 l, a
- Serial.println("[HTTP] GET...");; `9 ~' t1 y( n2 n9 I8 o w/ E" Q* d
- int httpCode = http.GET();. A5 u% o; X# T2 O. _" _
- if (httpCode > 0) {
7 @" L4 }- ]' Z - Serial.printf("[HTTP] code: %d\n", httpCode); f. o: e4 M( Z! n/ [2 `1 E- D; \
- if (httpCode == HTTP_CODE_OK) {* J$ z" Q2 L* q3 C( J
- String payload = http.getString();9 p1 m9 {8 ?2 h1 a+ O. b+ Y
- Serial.println(payload);& G3 {* k5 ~/ F) X/ b
- Serial.print("\r\n");
0 I3 f" Y% Z" k& t4 w4 m' ^ - return payload;9 n) y7 R" _! @7 w* [# e
- }
4 w( x; |, \+ x - } else {
& T" ^" P. r/ _1 y& Q, w - Serial.printf("[HTTP] GET... failed, error: %s\n",! O/ M4 ~5 N. n+ l
- http.errorToString(httpCode).c_str());! `" X* A b- k9 ]: W6 G, @
- }
- L! t; B" @% ^- @ - http.end();
3 C/ S8 o9 R5 F! c4 G( h - return "";
5 c4 W2 r- `3 |; }( X# A9 n" y - }$ [- A% N8 X5 G1 y7 [1 G
- }
, x4 A% P0 n y. T - void mainAction() {
2 U8 n+ ]2 B* Z, t l - // 发送请求
3 n: t8 K {3 q) @1 G. h$ T2 E - doGet("http://google.cn");
$ ^) V6 y0 h% ] - }
/ M% J# q( w0 G& Z
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