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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)
. [: J. m1 m# m9 h- #include <ESP8266HTTPClient.h>* T1 G4 U/ i2 t. n: R) Q
- #include <ESP8266WiFi.h>5 s9 J7 A4 q( n. ` W
- #include <ESP8266WiFiMulti.h>
v* p; o; b, k7 X/ ^6 z0 Z - #include <ESP8266WebServer.h>' o* `. I6 M l; w4 C7 ]) l
- #include <arduino.h>
$ c, ^- [7 r7 _; p7 X1 j! r3 p6 L& q& m - ESP8266WiFiMulti WiFiMulti;7 }5 h, H: k f9 q0 K& b
- ESP8266WebServer server(80);* u1 l# B. j( T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 N0 w* A2 v4 c* P3 F) U' K
- ADC_MODE(ADC_VCC);
" i! [0 k; s8 j# f0 v0 \ - void setup() {5 x* w5 d6 @, z: Z; ?9 z
- Serial.begin(115200);
) O% v5 n9 }- K3 n4 r; I - Serial.print("\r\n\n");
6 J- L5 b6 ?, i0 M" E - pinMode(2,OUTPUT);$ g, G" w5 b/ L: `
- // WIFI6 ~3 M% f P3 |0 G z* F Y& P
- WiFi.mode(WIFI_STA);
1 F+ c! ?7 M0 c! u Y% f - WiFi.hostname("Sparkle");
6 t4 i* Y% w* u( X0 D" p - WiFiMulti.addAP("wifi ssid", "wifi password");' T; y, i4 p( f
- int tryNum = 15;
5 ?) {# w* ^ s* \# _ - Serial.print("Connect WiFi");" F2 ^3 K6 V9 R# M* ?( C6 Y% ~
- while (WiFiMulti.run() != WL_CONNECTED) {0 x. S4 [! Y* M! L& i$ p6 g6 |
- digitalWrite(2,0);
, y9 t: Y; }/ d/ J' o - delay(200);( p& n) L" j# I: V* y
- digitalWrite(2,1);
- E' K% {9 _# W" V - delay(300);
5 [# r! m9 L" p* m! \+ Z! B9 d# e: |& _6 ] - Serial.print(".");
+ l2 f$ H/ u4 b - tryNum--;
& P; D* ]: t, W; R - if (tryNum == 0) {$ z; A5 j2 D' v
- // 1min
, g+ a, |7 [" L" x+ y" K - // ESP.deepSleep(60e6);
3 k& m2 x7 Z1 Q6 m - ESP.deepSleep(0);5 z3 F0 M9 T+ G/ o, K5 i
- }2 f* f6 J# s0 \
- }, X; h9 I+ Y# m1 {& c4 x% q
- Serial.print("\r\n");' ?9 T) G3 g) Z2 F) v$ w& R
- digitalWrite(2,1);; m {' I4 H3 h
- Serial.print("IP address : ");
9 @7 T- }; i8 N1 e - Serial.println(WiFi.localIP());
8 s, A% s* K# `8 s* X0 }! H - server.on("/", HTTP_GET, [](){( p. S5 m! W {1 _: ^
- server.sendHeader("Connection", "close");
0 `6 l) z5 D4 ? - server.send(200, "text/html", serverIndex);
/ B" m+ e3 H- n. I* ]- h; ?$ o( N - });
3 K3 [' m9 ?3 g; O. R9 u - server.on("/update", HTTP_POST, [](){
' R% H" q! r5 G+ R4 I - server.sendHeader("Connection", "close");
7 a3 H/ I9 [0 G. v C) Y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) J! M& r3 H( J
- ESP.restart();* j+ s, z ]! ?+ Y% f4 v5 h
- },[](){" _ m$ A1 k$ C; C# I' ?$ N9 J
- HTTPUpload& upload = server.upload();4 ~8 N4 m. X$ r$ @# r
- if(upload.status == UPLOAD_FILE_START){6 s1 H4 R6 M2 q5 H1 `4 B5 y
- Serial.setDebugOutput(true);2 D" s+ m# \9 i. i: ?
- Serial.printf("Update: %s\n", upload.filename.c_str());0 H5 P/ \) F0 @
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; ]- v5 [ `7 `6 n$ R+ ?
- if(!Update.begin(maxSketchSpace)){' o) n9 d) P0 {' O: k
- Update.printError(Serial);: S) { s, x! C, ~7 k E& P
- }
% `( J) L5 V& J - } else if(upload.status == UPLOAD_FILE_WRITE){
1 f/ I8 Y' l& n5 }; E - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' f: K: g' J3 A. R2 a+ u
- Update.printError(Serial);; j# G; R2 ~3 f: m8 t8 T
- }6 m7 g w; t0 G' e" c: z
- } else if(upload.status == UPLOAD_FILE_END){
. d, ^0 O6 c/ |$ K - if(Update.end(true)){, I& f5 Q! z1 ]1 V; L* v3 Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& d# A1 l( R3 f* q6 q2 w - } else {4 s( G# T' D4 M7 `& \
- Update.printError(Serial);
8 M" G8 c6 t4 R& ^1 y - }
" F' q1 h* G6 q8 ~ - Serial.setDebugOutput(false);. ?( d" s/ h( h8 G
- }
$ F% F7 H7 n/ k' _7 _, i6 g - yield();
5 U- A) \. H4 e4 q3 @. B - });
; @5 Q T; u; k( W. U -
3 a5 ~; F1 L& n/ d( N' n4 b( u1 R+ h - digitalWrite(2,0);* D; e4 b) r, e
- mainAction();
3 }; H0 _ P( }. { - if (digitalRead(0)){
2 s: D& n7 d3 _/ E: A0 N - ESP.deepSleep(0);. Z# Y L: ?. @' S% r% S* N* o
- } else {: Q; W+ M) b, k* C. a0 s
- server.begin();
! o7 R/ ] Y9 e8 R6 v" E - }
- k0 u7 G2 U B" B) k2 p3 T - }
8 D J% X7 \) M9 U6 L5 u$ @ - void loop() {) \. l7 y8 z; c8 d
- server.handleClient();" h8 n& `9 |: d1 g% e- p
- delay(1);
# U6 W+ b2 g2 M3 \% H4 \ - }6 \) V8 k. Q |5 M3 [
- String doGet(String url){4 L( k w! w: A) p' ^% ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {
. [; L! ^0 i j9 x* \4 J7 \$ r0 ? - HTTPClient http;9 S! W2 h* Z+ Z" ~( ]' @
- Serial.println("[HTTP] begin...");
' m' ]- H1 o0 I, r* ~2 A - if (url.startsWith("https")) {. U2 T) F* ~* |( ~. m7 u2 X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# q, {" q' o, u' \/ Z$ v' @) D - } else {
2 q7 r3 k r3 d6 K5 i - http.begin(url);4 _9 b8 r t+ p4 z& s' g" T8 A0 \/ j7 K4 z
- }
& S( R, g, S; [- o - Serial.println("[HTTP] GET...");$ m' v3 j% n( T% |& ?9 J
- int httpCode = http.GET();
6 a" A) X' c1 E; z0 V- n9 T - if (httpCode > 0) {, J% c. h( ^, z! K% F
- Serial.printf("[HTTP] code: %d\n", httpCode);( t- x* J' h! |3 B
- if (httpCode == HTTP_CODE_OK) {
& a* b2 F2 u4 L! h6 M) S" H' f - String payload = http.getString();
9 `) A. A4 }/ I3 y4 Q - Serial.println(payload);" u" ~0 _ Q- \/ T) b
- Serial.print("\r\n");/ t0 q7 X+ y0 I
- return payload;
. F; m9 _7 f/ q+ f - }% u( Z% i6 ?8 ~" s2 ^) T4 z R
- } else {, K# Z6 x F/ @
- Serial.printf("[HTTP] GET... failed, error: %s\n",
* ^- P2 g0 V) S! ~) \. Q - http.errorToString(httpCode).c_str());9 a0 p) J( p& W
- }
- b4 f' y& y0 Y( X - http.end();* O5 P/ x. \2 {2 f
- return "";
/ ^' M8 @& ^& V) M - }: m8 d, b0 F9 N) x% [7 d
- }, z$ X7 l D- m! A: F
- void mainAction() {% s% ~3 w* w& k; _: [
- // 发送请求( h( M. n9 A( w4 A$ y
- doGet("http://google.cn");& D3 i0 {% E/ `/ ~, p/ D3 r" r
- }" B! G8 C( N$ `) A! p" p. l
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