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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)
! p0 l2 m0 ^9 D3 f, a, k c4 i- #include <ESP8266HTTPClient.h>
5 [3 Y- V6 w1 G/ o. Q+ J - #include <ESP8266WiFi.h>
3 x8 l+ a% G8 e - #include <ESP8266WiFiMulti.h>
1 c$ L7 i) c* g$ F) C% ^ - #include <ESP8266WebServer.h>" r) w1 v( P: O4 u
- #include <arduino.h>
& S* J* t" d; c/ C% x - ESP8266WiFiMulti WiFiMulti;' l6 D8 P8 y1 ?/ |# @
- ESP8266WebServer server(80);, o+ s- e8 p9 c9 r
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, |" N5 j/ S( m
- ADC_MODE(ADC_VCC);0 ?: ?; N1 K. x3 O7 \
- void setup() {5 Y# d- q g+ O$ o6 e7 K4 k
- Serial.begin(115200);
* E+ Y- S" L* p - Serial.print("\r\n\n");$ v( C& v* ~1 P. n
- pinMode(2,OUTPUT);
& T# s) L: g; A/ v6 w1 u6 z - // WIFI
- o3 G/ I$ _6 r3 t - WiFi.mode(WIFI_STA);: f) [5 \/ g; z9 u" b5 ]
- WiFi.hostname("Sparkle");! _' J, U) @; g" J
- WiFiMulti.addAP("wifi ssid", "wifi password");: a! G1 v+ O# D
- int tryNum = 15;2 M# Q4 i z. l( N" f8 I7 ^
- Serial.print("Connect WiFi");
% }% O: s" n9 z6 e3 z - while (WiFiMulti.run() != WL_CONNECTED) {
: A1 @+ |" `6 a7 n - digitalWrite(2,0);
& m; I6 A/ \7 ?1 c& }0 x9 n - delay(200);; E1 b$ g# R; S* }& {/ Y! C `
- digitalWrite(2,1);
- R w) d- l) O; E/ z; J5 N - delay(300);7 W% \$ K8 i# |8 R% Z z" [6 r
- Serial.print(".");
9 u- z* r k2 |6 C- P3 s - tryNum--;* M) A9 v2 Q! d. q
- if (tryNum == 0) {
7 c1 {8 z+ B' N+ f - // 1min! b4 q# K L, \3 ^
- // ESP.deepSleep(60e6);
. r7 `2 f. ?# K - ESP.deepSleep(0);% ` _# |6 k) w7 d# | ]6 {
- }& q0 e6 w+ g% l$ H' ]+ m
- }1 `! o6 f/ D9 x
- Serial.print("\r\n");
* w4 ]3 l1 i. b - digitalWrite(2,1);- [, o. _1 `6 G$ u3 W9 y
- Serial.print("IP address : "); M! g1 y; V* S, L! Q% M, p+ h
- Serial.println(WiFi.localIP());" S: M& h0 C5 x7 Y3 _
- server.on("/", HTTP_GET, [](){1 x. r; f* P( r ?
- server.sendHeader("Connection", "close");" `; R k' f, B7 B" m
- server.send(200, "text/html", serverIndex);
* b& V% A4 D+ z1 W% @) T1 O - });
# E% z8 |& \! r7 D% B- a - server.on("/update", HTTP_POST, [](){# q$ } H% S* X$ e3 _2 X) G" P
- server.sendHeader("Connection", "close");
3 W4 b/ y- U2 {( s Z, h- o% d$ j - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% B9 w2 k3 Q7 S - ESP.restart();
/ j* e$ ?2 f+ O0 A; I - },[](){7 ~1 i0 T* K' t# ]0 R% A
- HTTPUpload& upload = server.upload();
' W. \' `4 O0 u; }7 r8 { - if(upload.status == UPLOAD_FILE_START){! \! u) F. e& ~
- Serial.setDebugOutput(true);8 E. Q, u' |/ l. e+ {+ s' c
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 S2 B0 ^, E @: |. M& H$ ~ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ b: n' f$ G* F$ G
- if(!Update.begin(maxSketchSpace)){5 K' c" s0 ~+ a0 v$ Z: h
- Update.printError(Serial); p( C. H/ n* a! B% k' h: H
- }
7 T/ o6 N; W. @. u h% c" q& u - } else if(upload.status == UPLOAD_FILE_WRITE){
) m! |) j1 C& m. p0 G - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: @ f. e2 c$ y- c. \8 k S - Update.printError(Serial);. p0 ^2 ~/ g1 D: d3 r2 D
- }- I C% P; v) y, Q& }; R: P
- } else if(upload.status == UPLOAD_FILE_END){
0 Y6 W! N/ [ S8 j) L2 X - if(Update.end(true)){
5 O8 L; p" S& Q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ [6 i8 Y* q9 Y7 A - } else {
5 ~8 e1 P1 S2 i& L9 V7 Y: }/ ]2 D) K - Update.printError(Serial); Z8 N j3 g5 z6 P0 c3 d! R
- }
% [% m$ Z. ~0 q/ M# A - Serial.setDebugOutput(false);
. v1 Q) j# Y) \3 U1 T6 h( j - }* d g9 E# J; \' g' Y
- yield();
7 }: c; G( _' R5 D3 l - });
# m. E% N0 v E, `% \+ f' b - " u Q; @2 j0 Q6 U
- digitalWrite(2,0);
7 F9 O3 V* i: B. n% K5 e! M - mainAction();: x# H& G: F8 h* n+ x7 R
- if (digitalRead(0)){
' R$ h3 f" p7 O3 f4 V% N - ESP.deepSleep(0);
# E) v( r5 A# S( G" s - } else {1 u$ m# _3 X: q8 z. |
- server.begin();
$ t* k. G q4 Z# o; d - }
$ k( U! y0 ]2 v5 R7 ~) f - }, N2 H9 Z9 n: ]. i: }, y( t2 B
- void loop() {$ }; P/ F9 A3 Q. B P
- server.handleClient();
5 |3 h0 d* O6 y5 \2 e/ e m - delay(1);
) v$ `' p9 M- C5 z" v - }: K& V! B6 J9 V" i! F) P
- String doGet(String url){1 r* @% Z) N3 U1 n
- if ((WiFiMulti.run() == WL_CONNECTED)) {
5 p! O7 Q, Z x ^ - HTTPClient http;- \% ?; T9 |: U& W3 e$ V
- Serial.println("[HTTP] begin...");
# w2 ?! H$ x! h - if (url.startsWith("https")) {8 z' S& J0 I% b) N
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 P! G/ ]# c* T, W% Q - } else {
5 ?$ ~3 o0 y5 V" b: o( R5 c - http.begin(url);
& B/ L$ v* q5 n5 c - }
6 X* ~- A8 W/ |6 j - Serial.println("[HTTP] GET...");" B- ^5 T- U, r) Y
- int httpCode = http.GET();" h a: [' X: W; j6 r& {( W
- if (httpCode > 0) {' N5 v2 O8 ]7 ~" {2 Y& T$ ?
- Serial.printf("[HTTP] code: %d\n", httpCode);: x- ?- x8 s3 |/ D& Y+ d
- if (httpCode == HTTP_CODE_OK) {
! W/ W& Z0 T3 O0 i4 j* L - String payload = http.getString();7 Z* O) Z9 P" o! @% g) k6 i
- Serial.println(payload);
" u1 z. \# c7 S4 L: W5 ` - Serial.print("\r\n");1 Q# U6 k5 Z5 G4 ?' \ }/ y
- return payload;9 L! K) |& y$ W5 n8 T8 O
- }/ W5 Y3 g; Y% s M
- } else {
8 A, `- S) F8 H" f2 G - Serial.printf("[HTTP] GET... failed, error: %s\n",
; n w7 h1 e. x2 ?4 {/ Z - http.errorToString(httpCode).c_str());6 u/ |( X1 \+ x( d2 k
- }# m% I# ^8 W# u. m L3 |" K
- http.end();1 V4 Z9 \& M6 Y/ }1 a& S* A- E
- return "";
, E, H7 _1 ]9 Q% _* Y - }1 J4 a0 G& B, q$ f6 d: i
- }$ b4 |9 K+ j& M5 j8 {7 j
- void mainAction() {9 x: H; k' V- G& {1 v
- // 发送请求
/ {; c0 K# E6 A: M6 B - doGet("http://google.cn");
1 s4 C) ?1 U/ @7 O - }) i0 y4 S* W0 o% o7 `. J- A
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