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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)$ L) \( U9 v2 s/ A
- #include <ESP8266HTTPClient.h>
4 h# g5 F2 i5 W( a9 i7 c. o - #include <ESP8266WiFi.h>$ z: c6 H9 d# P1 [4 t7 v
- #include <ESP8266WiFiMulti.h>
' N8 I) v! o) C6 w% R - #include <ESP8266WebServer.h>% m4 d! I, Q. C) N' x8 Y5 O" {
- #include <arduino.h>: B& `* K$ \( E
- ESP8266WiFiMulti WiFiMulti;
4 _# ^, N! \. Y - ESP8266WebServer server(80);
" H; _- R2 C9 u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ L- E5 J5 ^1 a& G. o0 c+ f, @* k
- ADC_MODE(ADC_VCC);. i5 D- I/ {# @
- void setup() {, z/ o* V. d# f7 T. v' ^
- Serial.begin(115200);8 M! y- y8 ^ c; \5 j6 ?$ L
- Serial.print("\r\n\n");4 f5 Z3 J# q8 [! ?6 w
- pinMode(2,OUTPUT);! n; V9 ^. Y) M
- // WIFI
, h/ s* d. y3 O% J, j& o - WiFi.mode(WIFI_STA);$ P5 R& b. d5 n7 x
- WiFi.hostname("Sparkle");, K0 y( c! O$ L- R& N# A
- WiFiMulti.addAP("wifi ssid", "wifi password");' o, `& N) Q5 g4 F- i
- int tryNum = 15;; `' e' D0 e( l. j' C+ \9 F
- Serial.print("Connect WiFi");
# q W7 W8 e1 u7 @ r - while (WiFiMulti.run() != WL_CONNECTED) {% k' ~8 V' `: y6 [+ h
- digitalWrite(2,0);! {4 q. g3 x! {' i7 j& B
- delay(200);
# n: F0 l$ _- M6 P# R9 L) ^5 ? - digitalWrite(2,1);
! a5 `0 H L H1 R# r+ n* w - delay(300);
0 \$ v% g0 x+ m; j8 R G7 G) }: I - Serial.print(".");' h* d( i6 B% H) m% j
- tryNum--;
- s; X- r5 n% T- T! j - if (tryNum == 0) {; n" j" k3 a- ]: @0 n
- // 1min
2 ?) N5 `$ t& P u# o F- V - // ESP.deepSleep(60e6);
0 ] _7 _# H, ]- D4 `. E - ESP.deepSleep(0);
* G9 X$ _% j9 h# k - }
1 r" R1 B3 _) s1 }) `; | - }
5 X! i* z$ J6 U - Serial.print("\r\n");$ C0 t8 P9 g! C, b
- digitalWrite(2,1);+ \8 j* T9 ]2 B' R
- Serial.print("IP address : ");* j: ]6 Q5 [- Y# j
- Serial.println(WiFi.localIP()); I* j/ y$ c& [2 G+ D
- server.on("/", HTTP_GET, [](){: b0 s4 |2 Z5 z4 B, d
- server.sendHeader("Connection", "close");
! g- L. _: b/ {) m" h0 _ - server.send(200, "text/html", serverIndex);, I A% H* V; F% }
- });0 A7 Y5 m4 U& `- D- {
- server.on("/update", HTTP_POST, [](){
1 \0 {: J9 t2 P2 ^% V8 Z4 v - server.sendHeader("Connection", "close");
/ c' m3 m( K0 h7 X1 ^1 |- O3 ] - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: Y- d; q- H7 s; y/ @
- ESP.restart();1 ]" x; P' m: o
- },[](){
" l% x' X- u' a8 m - HTTPUpload& upload = server.upload();5 F; e+ K! \0 O
- if(upload.status == UPLOAD_FILE_START){
) ]8 _8 C/ B" o( _ - Serial.setDebugOutput(true);
2 F5 O( |: p6 k6 b; \8 G - Serial.printf("Update: %s\n", upload.filename.c_str());
& t! O8 p8 W0 j5 o8 C - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 y8 g& L7 q! b: e1 e4 Q
- if(!Update.begin(maxSketchSpace)){. y8 c# H/ d- s f, F1 m* y4 Z7 m
- Update.printError(Serial); Y0 l0 m | Z [
- }4 B) L7 n* q: D8 g5 ]( H0 E( n
- } else if(upload.status == UPLOAD_FILE_WRITE){
! L, v5 f( {+ N/ q5 k - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* G# L/ V% u4 T7 }3 m4 m6 b
- Update.printError(Serial);& W; J) [/ }1 Z
- }* Q, w+ l+ Y" I
- } else if(upload.status == UPLOAD_FILE_END){( h, p( h8 @# |8 S/ Y- L, r5 p) C( F
- if(Update.end(true)){
- |. c/ W) A. k, E+ B - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' Q7 {1 h, S3 O; {2 [
- } else { U; A0 r2 s2 S$ L) H1 Q; ?% M
- Update.printError(Serial);
' w5 E, j: i* M4 C* @! G1 ~. y - }4 m3 U1 K9 @' |+ C0 V* N, X& i
- Serial.setDebugOutput(false);7 | c+ o0 y0 O( T; o
- }
# a6 H+ Q8 K# s+ C( G* _ - yield();
/ q# l* f1 z! X1 ^* S" g - });
$ n' Y7 w6 b( m- K. w f. r/ e9 B -
7 L4 S$ j" |6 ^" M/ c+ N* Z6 b9 T3 k% ?# e - digitalWrite(2,0);
! P& K9 z- T! y) R- u/ b/ O - mainAction();
) d' Q0 T, o: N' K9 k8 F" ? - if (digitalRead(0)){( a2 c0 w1 [6 Q, p5 H
- ESP.deepSleep(0);' o+ L/ \/ F2 P3 U
- } else {
# i6 o4 h: D. H! J6 ^" E - server.begin();
9 h2 ]# _) A1 N1 U4 }% R. a: d& O" k - }/ W" `+ B& O8 x3 n
- }9 N4 t7 \2 [0 m* J, v
- void loop() {2 ?% n3 N! `. T7 U9 C9 k
- server.handleClient();
9 U0 j; W9 l4 N$ i2 b+ Z - delay(1);
! z; t, f" U/ c& } - }; h, l: [1 X3 O0 g; A' P
- String doGet(String url){: O# r: c q7 ^. I* L
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 v- Z8 U; q7 ]' d
- HTTPClient http;
$ D) b' Q' J3 c- K, M - Serial.println("[HTTP] begin...");! n* |, J# f7 g- ~5 v" r% w' z( T
- if (url.startsWith("https")) {& t4 s1 E# Z* M0 y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 F1 z. C$ V U! B0 Y% m1 m - } else {
$ P/ I( j4 o. \, F5 M, t - http.begin(url);
4 b. k2 R. b! ~3 `. h" W - }
" f8 D9 V/ R: k: [1 i0 S* |9 M - Serial.println("[HTTP] GET...");
- b8 f8 \: v2 Q) o - int httpCode = http.GET();6 t3 u: b1 w0 j0 h4 n( m, l* Q
- if (httpCode > 0) {
5 v5 I3 t% `5 p5 g - Serial.printf("[HTTP] code: %d\n", httpCode);% d& Q+ L. w% a- x4 w5 b6 L" s
- if (httpCode == HTTP_CODE_OK) { n* O; Z, U r# s
- String payload = http.getString();
' r' A- X3 h2 y7 }) D, [ - Serial.println(payload);
& A( D7 e/ {2 r: x - Serial.print("\r\n");
$ s% \( K, x; {/ o% c - return payload;
$ _, K" P7 v! X4 F4 {- V - }
2 W) F9 H& S. Q e/ x5 ^1 R& { - } else {
! K% |7 E6 _2 Z - Serial.printf("[HTTP] GET... failed, error: %s\n",: y& ^% G! Y6 r: O
- http.errorToString(httpCode).c_str());) E; r/ w) i/ f; E. X5 t
- }) l0 w7 @, e% F8 \3 a
- http.end();' ~) a& n: q$ @/ B
- return "";$ ^8 X' {9 y. y0 s% P( r
- }
4 ]! a; l, L) u7 V- O8 v2 D - }" k: H* L0 b$ I+ F5 u2 b, @% I
- void mainAction() {& }6 y1 R9 o& U( T
- // 发送请求
( f4 m- Q. ?$ n9 b - doGet("http://google.cn");7 Z4 T$ r7 H6 [/ q9 I% a, M
- }5 s: ~6 I* t0 w: ^6 e
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