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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)2 L( {; w5 M* b( Q5 q1 B
- #include <ESP8266HTTPClient.h>
" [" E. a# i" {6 o Z' C - #include <ESP8266WiFi.h>1 s" [7 d6 o. N: {! `
- #include <ESP8266WiFiMulti.h>' t8 B/ G" f+ z& d5 r
- #include <ESP8266WebServer.h>( t0 H2 k1 B' ?! y
- #include <arduino.h>
1 f. d; [9 k% A9 O - ESP8266WiFiMulti WiFiMulti;
9 H+ Q" C4 M* ` - ESP8266WebServer server(80);
, g3 w+ `1 l. h1 r2 w; E9 h! d9 O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ e5 d2 A. i1 R$ p+ {& w - ADC_MODE(ADC_VCC);$ f* |# J5 M8 M! o
- void setup() {
& B2 z _2 X/ H& A, ]3 K' | - Serial.begin(115200);3 p( ?5 [" x% N6 j: O
- Serial.print("\r\n\n");1 [+ \* X, H8 e" z
- pinMode(2,OUTPUT);
) ]' q( S( J, M4 z) i+ S3 N - // WIFI5 y! k2 K1 Z; X1 W$ ~
- WiFi.mode(WIFI_STA);
3 }& u+ j0 ~" ~. V6 { g - WiFi.hostname("Sparkle");4 n4 {8 T2 l3 N" D
- WiFiMulti.addAP("wifi ssid", "wifi password");
( c7 M _! B5 M. b: s$ f - int tryNum = 15;
1 u* |1 Z% s8 S6 ~$ @- X) r+ Q - Serial.print("Connect WiFi");
. R( L/ t% \5 d H: y5 A2 t& A - while (WiFiMulti.run() != WL_CONNECTED) {1 Q3 }, B( v& C4 a
- digitalWrite(2,0);
8 h( o9 ~2 n4 l) e2 T - delay(200);! }' D" |( D7 Z; M% w
- digitalWrite(2,1);0 Y4 l/ _6 Y1 ?8 b! G: N) Q- d
- delay(300);
" c( r% A9 q5 r: A - Serial.print(".");
+ M6 i. H" s `. y+ w - tryNum--;
9 u4 n; d G. C9 @2 Q% L5 E$ B0 p - if (tryNum == 0) {8 z; T$ R! u2 ^. _) b" X( f5 m3 G, F
- // 1min
. w6 d6 z0 V* e3 c, a D, L$ I - // ESP.deepSleep(60e6);
: i# X. L1 i3 R - ESP.deepSleep(0);, k! U X" l" u' ~+ t; h
- }: i5 @7 h% Y$ o* Z, N7 O
- }
* g) j' h) `! r$ g5 f - Serial.print("\r\n");; J5 D3 `5 S4 v# O/ g4 u- c( `& C
- digitalWrite(2,1);" h' `' O( O2 R$ c- J
- Serial.print("IP address : ");4 g; O$ e5 p5 e' x+ F& N: r
- Serial.println(WiFi.localIP());
. j) |5 o. d! b/ G - server.on("/", HTTP_GET, [](){, [ M/ V2 U( @8 f1 z. y8 V
- server.sendHeader("Connection", "close");
+ Q7 _% k& [, ?9 r - server.send(200, "text/html", serverIndex);% q4 r' I! y& J6 K. y
- });* y% H+ `4 l; r* z y
- server.on("/update", HTTP_POST, [](){
7 {+ o: O* j- r - server.sendHeader("Connection", "close");; y/ H9 Q8 ], v8 }' v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 j/ c# ~- H8 L, L: X
- ESP.restart();
8 b7 d% s/ s. ]# H' q6 B$ A - },[](){- z( r, V( M0 J/ m, s6 Q1 x
- HTTPUpload& upload = server.upload();1 ^8 ?9 }; G: c# Y3 y
- if(upload.status == UPLOAD_FILE_START){
G9 I, a1 m5 f1 o ^ - Serial.setDebugOutput(true);9 {3 `7 k, i: O8 H c8 d
- Serial.printf("Update: %s\n", upload.filename.c_str());( `7 a3 e" [& b; X& Z5 K2 e: a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; `# Q9 j$ r7 a$ k" T7 w
- if(!Update.begin(maxSketchSpace)){" P1 _6 o$ Q( S r2 v2 a( L
- Update.printError(Serial);/ p0 l- d) V- T6 ^3 z
- }
2 B, o5 I4 e5 i! ]: G- y - } else if(upload.status == UPLOAD_FILE_WRITE){1 ]8 Z( y# L! P1 s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: I: q; F0 o! P* \ - Update.printError(Serial);
7 Q) Y8 {- B- }0 C. z W - }, t* P0 b5 j/ y4 f' n3 L I
- } else if(upload.status == UPLOAD_FILE_END){
" n9 r$ {5 {- f4 Q# b - if(Update.end(true)){$ _# H) h& e" @1 p: r
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ K5 _& o, R: F1 n' \2 r& i
- } else {
- h* V+ ]) D2 [, \2 Z. S( O+ i - Update.printError(Serial);( p% z! A7 z! ]" I+ |; [2 m
- }
3 t1 _0 Y% r. C: @% N- M - Serial.setDebugOutput(false);
7 U* G) G# u; }* S - }
3 y4 ?& a" s+ D+ t' Q4 U V% Z - yield();1 T8 Q! B5 {0 u+ J3 w
- });
) b' I/ G6 n# m G, D2 X -
; O4 e3 T) c/ ?0 z2 C) l - digitalWrite(2,0);
" Z) l/ S7 b5 o/ s7 U b$ ^1 U+ b - mainAction();0 l0 [; o9 u3 x: Y( p
- if (digitalRead(0)){
1 ~2 Z. I" ?8 ~5 a7 W - ESP.deepSleep(0);
* d4 u, b. x0 l; C" W - } else {
- r+ p- `; c1 Q; |) H - server.begin();
" a1 t/ F, W" s9 B# o - }, D3 F3 A% b2 U3 `0 @
- }/ t# c! X& Z. b& S0 ~4 i2 t
- void loop() {
/ D- G6 O# ~/ ~- a V - server.handleClient();1 ^7 [+ K4 B( p! o
- delay(1);
- ], n9 T( m- S5 ?* }" x - }3 y' z/ j" e% x) u
- String doGet(String url){' S( G, Y2 W6 j8 `
- if ((WiFiMulti.run() == WL_CONNECTED)) {
' M1 [% S: y0 Y6 \$ \6 p" s& M - HTTPClient http;
6 P) F: ] F+ E, @. O - Serial.println("[HTTP] begin...");
& N8 q2 e- V& Y2 ?- i% A - if (url.startsWith("https")) {2 B: A) e2 B1 ^, e
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: q6 A* V, I( e4 P8 ` [ V( Y - } else {# V; l+ i6 j; V/ P; ]% O0 t
- http.begin(url);
' T% ?( u( m ] - }
" {2 ?) Z& Y9 p$ j, g - Serial.println("[HTTP] GET...");8 K* ?* y- R- H+ K& l5 a" _' ^$ {& |
- int httpCode = http.GET();
* H- Y$ v$ c) U) z0 B. u - if (httpCode > 0) {
7 S8 U0 X" G/ P, c9 }* |* K - Serial.printf("[HTTP] code: %d\n", httpCode);/ L' P9 P/ t3 X' W) C
- if (httpCode == HTTP_CODE_OK) {
! Y0 ^7 T9 J* Y% v3 g+ i - String payload = http.getString();
u: h3 s6 k$ w9 |/ i/ ?6 y' \ - Serial.println(payload);
4 d+ M0 H4 O& \0 D2 s - Serial.print("\r\n");
, l' l6 B4 N3 M& V# _ - return payload;
8 i+ Y3 l" p2 | - }6 Q. O4 y1 o* n; ^/ r$ u, r6 V8 y
- } else {
, L3 w2 r/ H0 a) E8 v/ v - Serial.printf("[HTTP] GET... failed, error: %s\n",; M' y8 L- z7 r/ W, O
- http.errorToString(httpCode).c_str());" D9 Q- G$ f9 D8 b9 @' S
- }
9 J& F# \/ z- J% K. | - http.end();+ h5 ~( ~9 j6 S3 P. x# r; L
- return "";7 Q1 y, k4 |2 Z; U/ H+ q* h
- }
H/ S0 c+ p$ J8 R- Y - }
; c4 o6 ?% p% b% N4 C+ _9 r2 q - void mainAction() {
* H1 W2 ~. t, S9 R - // 发送请求, f8 h* V9 t* I& v H
- doGet("http://google.cn");
. ]$ Q& n: D$ K - }/ w8 W0 h; `* d4 ~* N' t. o+ A
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