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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)+ y [ l0 ~8 d+ _, Y
- #include <ESP8266HTTPClient.h>
8 A! y% o+ c0 A7 x! k - #include <ESP8266WiFi.h>" s3 A/ l6 k/ f- ]$ I
- #include <ESP8266WiFiMulti.h>- ?) _: T% L7 [+ @* W
- #include <ESP8266WebServer.h>5 V8 c, P% J& d7 k$ O
- #include <arduino.h> A5 p. f/ w% D; w/ E- M4 N
- ESP8266WiFiMulti WiFiMulti;
6 v$ {6 C+ o: S% l% m# c; \) E9 u - ESP8266WebServer server(80);' }; C$ w2 S5 E% y0 O( z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 H4 |! u5 d* _# k4 j7 Z; c - ADC_MODE(ADC_VCC);) B6 t/ Z1 r; f7 B' P
- void setup() {, M" u3 |3 G E' ^# A7 U4 l
- Serial.begin(115200);
) k6 {; E" `4 P: @# f2 y) L+ F$ e - Serial.print("\r\n\n");% }( j" m+ C% U! k( M# n
- pinMode(2,OUTPUT);1 l6 m$ @4 D8 F4 l" K; L2 L! Z% g7 j
- // WIFI
% @; m& m( u: p8 Q; |4 j - WiFi.mode(WIFI_STA);, c. o7 D" m+ }% j; G" G9 s/ ^
- WiFi.hostname("Sparkle");
& @) W4 F/ ~; l' H) n) g - WiFiMulti.addAP("wifi ssid", "wifi password");6 t& E9 r9 b7 N
- int tryNum = 15;2 g) p/ a# m, Q, @- Z+ F
- Serial.print("Connect WiFi");+ ]' R- [' o" p; V
- while (WiFiMulti.run() != WL_CONNECTED) {* \3 m' f5 E2 S
- digitalWrite(2,0);
7 D7 Z( j/ o J e3 u - delay(200);
R( V9 }6 \* T' f3 F1 R! t: \* \/ F, Y - digitalWrite(2,1);
5 f$ W" n# y; ~& [: @ - delay(300);
* P7 g0 a) Z: I& g - Serial.print(".");
/ p6 @: }# O) A4 m - tryNum--;
! ^* S' |8 }4 u! j9 `% @) D - if (tryNum == 0) {3 r& f/ I# [% Z# e6 h
- // 1min, {: I- y( C8 y+ @0 V
- // ESP.deepSleep(60e6);
; u* U! Z6 _+ f - ESP.deepSleep(0);0 S/ o# g! ~! y2 ?0 P
- } b; _* s. t: v+ @3 p/ R3 F: ^$ P/ O0 T
- }
* i+ u* j* ^1 x6 r: j+ p; L+ @# h. g - Serial.print("\r\n");( }1 s1 h# Y* o; o
- digitalWrite(2,1);: R1 ^1 j& `: Y9 V$ a
- Serial.print("IP address : ");
- B4 I1 Q! R% E6 M" h8 W4 Y - Serial.println(WiFi.localIP());$ ^+ B3 L# \0 N% F7 D
- server.on("/", HTTP_GET, [](){0 s1 R& q8 J4 s; y3 F
- server.sendHeader("Connection", "close");
- \4 x& X5 J) ]* y6 { z0 w% g; \ - server.send(200, "text/html", serverIndex);
/ w( K) k3 h$ c6 F/ ] - });
6 ~. m# l* i/ A' m# g0 l - server.on("/update", HTTP_POST, [](){9 A. W G+ k0 M9 Y
- server.sendHeader("Connection", "close");0 G3 u+ P% P8 {" \5 u5 u
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) G7 K ], a5 t" o. k2 ?9 C - ESP.restart();
0 M/ ~, L' ~4 i8 N; W' d# [: R/ a - },[](){, O+ `9 E- w" Z. d( _
- HTTPUpload& upload = server.upload();
% `6 }* k* h% u L% p/ [- _ - if(upload.status == UPLOAD_FILE_START){/ Y1 y c; @7 U6 f) V0 F* J
- Serial.setDebugOutput(true);
. w9 \1 ~, C/ F4 R" r - Serial.printf("Update: %s\n", upload.filename.c_str());$ _2 ]8 t% |* l7 r4 g) {7 W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! L! V) m5 P' t
- if(!Update.begin(maxSketchSpace)){
+ _! I! A4 @+ j: ]3 e8 j - Update.printError(Serial);6 ?2 s$ o) U9 y% ^
- }
% ?! D+ f" @9 N' @7 B' F$ m0 }9 ~ - } else if(upload.status == UPLOAD_FILE_WRITE){; R% L+ P; x. v3 y- V- z/ v! _
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) c2 i9 Q3 e% I9 j - Update.printError(Serial);
8 F) \' Y4 O+ R' F- V, r3 ` - }. }, x( g5 Q2 B
- } else if(upload.status == UPLOAD_FILE_END){
t( j: y/ Z# ?3 S5 K, ?$ ~ - if(Update.end(true)){' |- O! _! g! R6 [ ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( t* I3 P$ E4 g: d
- } else {
$ L$ h9 v! i7 ^1 ^! ] - Update.printError(Serial);# R! X- Z4 L; |: J- _
- }
4 F. z6 C6 y# Q( \ - Serial.setDebugOutput(false);
& L! n+ D5 i2 P' ] @ z# _, T - }4 x' ]2 V7 y2 a u) p; [$ D3 I
- yield();9 K- y Q) B7 }* L) G
- });. W& k- q( ]0 Q; L; P
-
- x, ?4 Q8 s$ ]6 i2 V - digitalWrite(2,0);
. L' L: ^: d! p+ h* G - mainAction();" ]# k! v# Y/ l' k
- if (digitalRead(0)){
; Q) Y& T5 f: i/ `0 e - ESP.deepSleep(0);- L0 o4 |+ c8 ^
- } else {
* x- W5 M# J8 r2 @1 D" _5 f9 x' b6 h - server.begin();
3 | u% F3 y8 T' P# l% |8 P - }" J+ _3 {, z: x& ^% [$ t- a7 f' ~
- }
* s# T% d: w9 O s1 ] - void loop() {
- j( \* H# L+ x2 ^, o+ a - server.handleClient();
4 W& [# G* R! [; W* P7 M4 j/ m - delay(1);
1 o: Z$ a% x$ [# E - }
- p( A9 z) I$ l$ R0 E - String doGet(String url){5 A2 V& P% x5 u5 X: r( m8 x8 _- `
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- }2 U* R5 g7 K1 B - HTTPClient http;7 J! b/ |4 u7 F& S
- Serial.println("[HTTP] begin...");3 E1 q0 y" U7 B0 I
- if (url.startsWith("https")) {$ r* _4 `; r9 d0 e
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ C( t0 f/ a6 c$ I- r; k - } else {5 y7 I8 J9 h, f$ }
- http.begin(url);
c- g8 W2 k: d1 U9 K' p - }( a' [7 b5 x; O0 v2 |
- Serial.println("[HTTP] GET...");
1 Y: A o; e) s/ ^( |9 W* v2 L - int httpCode = http.GET();% ^# f1 A$ m+ t4 G# o4 v
- if (httpCode > 0) {% O% n& p! W: h+ v* v$ F
- Serial.printf("[HTTP] code: %d\n", httpCode);
! c- u; o* O# C - if (httpCode == HTTP_CODE_OK) {% q6 ~' v0 N7 j$ J, l
- String payload = http.getString();. I' e' W& |4 z" _8 l; B5 c
- Serial.println(payload);
% T, p' }, Z E$ v" G4 B& V - Serial.print("\r\n");
* O! R# c) ~5 J5 ^3 w - return payload;) ] S r2 A4 R! d8 @, B% B
- }
1 b5 z7 u5 M; n6 v! f: i7 R+ H7 }6 f8 I - } else {
+ n% ?! t* x5 S+ ~8 c - Serial.printf("[HTTP] GET... failed, error: %s\n",( p& _0 Z$ U) ]1 M, \- t, T
- http.errorToString(httpCode).c_str());
# h4 ~2 n w' Q' M) e; }" G - }. _: k- P* ]* k6 c
- http.end();) K8 f8 G: k# S6 R G
- return "";
* D6 t; }! A3 f% K/ Y - }
7 l% B& x$ h0 [$ S& G l - }
' x; C7 E" I: _$ A% G* Z$ x! |: G/ v - void mainAction() {5 i; c2 l0 v" |3 g- |
- // 发送请求# v# y' W" L! e5 `. h/ r8 e! x
- doGet("http://google.cn");
* E& ~, }% s1 ] - }* {" r8 W5 {1 w. m- z
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