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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)& z6 n/ `* k9 T* O7 z" c7 H0 V! u
- #include <ESP8266HTTPClient.h>
4 D, o, R- G' C+ Z# y' u - #include <ESP8266WiFi.h>) _7 z+ m' E; _
- #include <ESP8266WiFiMulti.h>, X% E2 L7 ? i& a7 N
- #include <ESP8266WebServer.h>( J K4 _. {/ V' g: M2 D3 e
- #include <arduino.h>0 |. V+ A( Y+ _7 l; m. ]
- ESP8266WiFiMulti WiFiMulti;+ y m) }. X3 ]5 C5 d
- ESP8266WebServer server(80);
) b) N( x2 [1 e' Q0 ` - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* u% I4 ] V/ D, T) l8 F: v - ADC_MODE(ADC_VCC);
- j5 c8 V% _# h$ m - void setup() {
3 p. u8 e4 Y$ \$ C& d! G - Serial.begin(115200);2 G% E) I+ F3 {# X1 _% f0 f
- Serial.print("\r\n\n");
: k# o* c; L8 S$ |/ m, X - pinMode(2,OUTPUT);
+ _9 n/ ?5 R4 a* L) W' W. Y - // WIFI3 ?, N! g; z5 t0 s
- WiFi.mode(WIFI_STA);4 S& J7 O( U% P6 G6 v, o
- WiFi.hostname("Sparkle");
" E7 B* ]0 ~4 g* J1 W7 R - WiFiMulti.addAP("wifi ssid", "wifi password");
2 i. q4 W f2 q* v - int tryNum = 15;
E7 X; u" n6 H% a( z - Serial.print("Connect WiFi");
4 r# V# j9 e* f- b6 ?( O - while (WiFiMulti.run() != WL_CONNECTED) {4 } B1 Z' b/ d8 E n8 x$ x% j
- digitalWrite(2,0);
' }- l$ a9 p4 }( [; i B" A6 b - delay(200);5 p5 r( b+ V# l
- digitalWrite(2,1);
, @0 Q' u, @% }8 n, y0 H3 Y - delay(300);8 _! ~ D) E+ q+ E, [- `7 D
- Serial.print(".");
, ?( P& r6 @* @/ U. D. a. N! O* [ - tryNum--;0 r- [1 ^8 i k4 O' v
- if (tryNum == 0) {9 u3 B1 P' H& d
- // 1min
: s' O3 V( D9 m - // ESP.deepSleep(60e6);
( \+ `# x9 e6 ?9 ^8 V! W7 s - ESP.deepSleep(0);: i2 c. P; \' j" R' [: ~4 b6 \+ X
- }: Z0 e1 O5 y) D& p, ^ N0 X
- }
9 f* e) Z$ S/ C1 G$ X- D$ ?: } - Serial.print("\r\n");: j9 I! _3 h, P+ t/ A$ K+ i
- digitalWrite(2,1);% Z: F$ v; i. o2 R& v* s: ^
- Serial.print("IP address : "); d: A+ [* O. t0 l, l
- Serial.println(WiFi.localIP());2 J2 Z- g) S, B; C# P f5 S9 ]2 ~( P
- server.on("/", HTTP_GET, [](){
* D, Y4 ^9 Y! N" V - server.sendHeader("Connection", "close"); f/ i' K" @* @# n( V& g- G
- server.send(200, "text/html", serverIndex);/ ]: i7 ?! [; r; {; g; A
- });& V6 T Q! \/ `2 V, l7 W( T k
- server.on("/update", HTTP_POST, [](){) e1 k) `% M; t: X4 d
- server.sendHeader("Connection", "close");- q0 J( L% N! q: ?$ S( X. ~- h
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# o! ~6 U6 @% B0 J: L# e: H- r
- ESP.restart();
1 O* @9 e( p w( H h D& K* U. @. z+ T - },[](){
: Z* t2 O9 d! M) V2 `; N - HTTPUpload& upload = server.upload();* r; R/ b! u! D+ M. k! d
- if(upload.status == UPLOAD_FILE_START){4 [1 U9 `6 m' U( o
- Serial.setDebugOutput(true);- d$ H; s! I* C4 o
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 }$ U+ t& b, P# u6 w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 d. d; J$ F/ G, J; k - if(!Update.begin(maxSketchSpace)){: V9 Q/ x+ _3 C4 J( D
- Update.printError(Serial);
( x( m( t* ^3 x3 [. P - }
5 B# R; A# j0 L7 i% K- m/ n - } else if(upload.status == UPLOAD_FILE_WRITE){, R @( t* L' G9 x* X' f2 k/ o1 S
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' W$ l1 r H8 y- ?/ }, p
- Update.printError(Serial);; v( a$ ?0 F( ~
- }
7 F) F* p0 f0 M. l$ I! u- v - } else if(upload.status == UPLOAD_FILE_END){
, R/ y- s7 D% F' p7 Z% t - if(Update.end(true)){7 d9 O" u9 B+ |, \4 Z3 ^; T7 W8 ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 O5 o) I. p% U# q, L
- } else {7 t; E. A* J2 P5 u7 z4 u% ?& w3 W
- Update.printError(Serial);
. ?7 v" J' J6 m$ l5 z' }! S% r* s - }
9 |9 o/ z0 ^) S" [ - Serial.setDebugOutput(false);& L- a M+ q5 j6 o
- }
! S8 s$ A* O4 {2 F2 Y$ _; {' Q - yield();8 M g3 z9 L; H2 Q) y1 c4 O0 d! i" d
- });. m7 s2 F3 W: d0 g# |
- ; e: P, c m G0 \0 }+ i* b
- digitalWrite(2,0);
! E# r+ C( D3 E# O - mainAction();
4 \/ P% P e2 G6 {/ g - if (digitalRead(0)){
+ k/ V. Q9 ?2 a& m - ESP.deepSleep(0);" t/ n# _7 Z/ V6 a) `4 E
- } else {
* t1 ^% P% U- f9 `' S' y - server.begin();
" r" z8 O8 ]# y% g7 V1 X - }* @$ q9 b* i6 N( z* g. `
- }
7 \# s7 Q8 [1 w, x/ J$ N - void loop() {4 N7 b$ u- _! K. U/ K" t" n' x" ]
- server.handleClient();) E# [% v9 m5 X' t7 z( g7 }
- delay(1);
U, X! e y% G& z( e/ s - }
" N) H( b+ b, n( s3 D' k - String doGet(String url){
/ }* j5 G9 u6 _0 H - if ((WiFiMulti.run() == WL_CONNECTED)) {
; r7 F0 n# d" @# I; I ]' z+ A* c- ]' p - HTTPClient http;
& Q1 [4 j3 F' {% B& {# Y - Serial.println("[HTTP] begin...");
" N7 h9 T& I) M% Q n7 l+ A - if (url.startsWith("https")) {" P. N2 W; b K( `4 X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, N6 a' o A. D. d& g. E9 Q% ~ - } else {
* Q- r) y' i3 V - http.begin(url);. K9 ~- |. J [% n: \
- }
* ^8 A( z8 P" u7 j. J4 w5 a/ { - Serial.println("[HTTP] GET...");9 G, c' P4 N, @& M' K
- int httpCode = http.GET();) @7 c7 Z; S5 O( k
- if (httpCode > 0) {
4 }* m' a2 F5 j# y# E - Serial.printf("[HTTP] code: %d\n", httpCode);
: N8 J% q* ?$ G- c - if (httpCode == HTTP_CODE_OK) {3 n1 ^* P9 h0 [
- String payload = http.getString();
' w5 m% O8 ?! B8 F9 v4 T7 \7 ~$ r P$ x - Serial.println(payload);' h1 v, _* t6 N" {+ ^' Z* P
- Serial.print("\r\n");6 o- `6 |' b# f6 ^$ \! X5 g5 Y
- return payload; ~- R: ]/ M. S3 g5 j8 u, G3 V
- } O8 R( N" l$ v
- } else {# j9 T0 s. X$ P$ A9 Z* e
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ p! L0 p3 |+ Q6 t( ~' \
- http.errorToString(httpCode).c_str());
0 i3 K% O: ^4 c& I, `9 T I) Z( y2 K' V - }/ e9 y) f0 R0 F9 w- D, W
- http.end();) _9 L# U2 H# m7 M& k( M" B' V9 {% [
- return "";) a" j: |$ _% V/ H
- }9 }% R0 h. y6 q- |
- }
% J+ x# @ N. b& r- K, U* n0 x - void mainAction() {' E9 D& N$ P1 @3 a+ |
- // 发送请求% |! r+ B0 `$ I* k
- doGet("http://google.cn");1 }/ m5 [/ P. j
- }9 }$ f9 e( X# T- M% x9 C9 t; a5 ?
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