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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)" f1 z2 J) p6 \ N- W
- #include <ESP8266HTTPClient.h>, u8 W; Z- t% Z$ i
- #include <ESP8266WiFi.h>* D( n5 ]+ O7 x: ^ }5 T. U4 m
- #include <ESP8266WiFiMulti.h>
* u* ]& J& C) ^) |0 o - #include <ESP8266WebServer.h>' @' R4 F# c C! d% N
- #include <arduino.h>
5 y' y% ~; t) o! C# s, M - ESP8266WiFiMulti WiFiMulti;* l8 Z# @3 r8 c3 k
- ESP8266WebServer server(80);
9 O# y C9 I: w% V# ]' E. T4 n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- `4 y5 j: I" J9 {4 j
- ADC_MODE(ADC_VCC);$ E( A( V. P, _
- void setup() {* l. h$ n; v4 H7 X
- Serial.begin(115200);/ k( |/ ~2 @) H' B3 c
- Serial.print("\r\n\n");
( V3 W& V2 h! f5 c" S1 D0 P7 r - pinMode(2,OUTPUT);
0 D$ M) L X4 n9 c - // WIFI7 B% [% G S/ m4 q/ V
- WiFi.mode(WIFI_STA);4 |+ G$ ^1 ^- G& x7 h: J; t7 j
- WiFi.hostname("Sparkle");
1 ?: [5 }9 i% [1 D - WiFiMulti.addAP("wifi ssid", "wifi password");
/ Z3 h* L8 D) l8 z: H1 u2 t& f - int tryNum = 15;! x: U9 p" P$ R; @" r1 K. Y
- Serial.print("Connect WiFi");
Y; L1 U$ F5 t4 s0 p. A: @, F - while (WiFiMulti.run() != WL_CONNECTED) {' c+ A9 b, n' j% P7 j9 @0 a
- digitalWrite(2,0);
: O* e+ g5 C/ b* G - delay(200);" h! ^* d! s& ]7 ]9 I
- digitalWrite(2,1);
9 f& L$ t+ a6 r6 k4 B- `" ^5 ]8 m - delay(300);
6 k/ M s9 t# n4 D, q - Serial.print(".");
3 @+ W7 V- D2 i# Q - tryNum--;
, e4 P# r7 e; P0 U( l - if (tryNum == 0) {6 v3 }) S, ^7 S9 q5 n$ T" {
- // 1min; i7 {7 b# f) x3 J
- // ESP.deepSleep(60e6);
8 E8 a3 e- W9 v* J+ u+ N! O% ~ - ESP.deepSleep(0);
9 l' P# T3 a0 V. v3 h - }; P5 m# T7 ^: @+ ^% L) e
- }# j `- { y/ d4 Q
- Serial.print("\r\n");
! t9 @' g9 M' C- t1 x5 u& e - digitalWrite(2,1);; j% N( d2 t% b0 G& W3 K# |+ Y7 H5 ]
- Serial.print("IP address : ");
$ i# }0 {' |* c3 _# m6 b: s3 K - Serial.println(WiFi.localIP());' O3 Q8 Z. F8 c. t
- server.on("/", HTTP_GET, [](){
$ F8 j9 V' e! F7 J- H7 o) b0 l* F - server.sendHeader("Connection", "close");
1 f. y& {- X8 r+ Q - server.send(200, "text/html", serverIndex); }/ f8 {3 S( {0 ^, ~
- });$ L+ ]5 e& P; Y1 L% z- e# l* {
- server.on("/update", HTTP_POST, [](){
/ Q0 r: S7 {3 I- i - server.sendHeader("Connection", "close");7 j* s, ?0 ?+ @' x
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 K" X7 ]' u* E8 i5 Z - ESP.restart();* c( o3 b4 i1 a7 a6 k8 ^
- },[](){/ I* O) i+ y9 T1 F5 ~' |
- HTTPUpload& upload = server.upload();6 W$ U& x& ]4 \) | W! D s/ ?2 q
- if(upload.status == UPLOAD_FILE_START){" D+ u. T4 t- b/ X# @9 b2 F* |5 I
- Serial.setDebugOutput(true);
( B5 m$ e" U5 U* G: x+ r; r - Serial.printf("Update: %s\n", upload.filename.c_str());
0 w# f0 Z, D5 F+ } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: q0 C: Z. {. n& y' Q) T% `
- if(!Update.begin(maxSketchSpace)){# C. q. j7 r; }
- Update.printError(Serial);; q' o+ F6 o! y! z' B
- }6 M% W' L3 ]4 z* u1 w; h+ W; L
- } else if(upload.status == UPLOAD_FILE_WRITE){
6 i9 g* Y: f8 X- t( O9 f+ H! Q/ D - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- u/ ^& X% K) [3 P- w5 l! g; u
- Update.printError(Serial);
2 E; ~, T b7 {- [% { - }" V1 g G& _2 [1 `+ }& h2 x1 m, Q
- } else if(upload.status == UPLOAD_FILE_END){
0 v8 [- t0 |/ \ p( K - if(Update.end(true)){
( U" n4 m& V9 p$ `0 @) b - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 {, q; z) R. H8 p5 _+ K2 R# e
- } else {
. f. j0 j% i+ x' E& e* \ - Update.printError(Serial);
$ }; _! P/ j. |; t9 A5 L - }
; I2 C6 {* i4 i, X. Z$ I( o - Serial.setDebugOutput(false);4 f+ j$ F( x1 X
- }3 }$ J, n! V. s* g; l
- yield();6 s- r4 X2 | x- E8 ^1 A0 m
- });' Z5 M/ |2 {7 a3 P. `
- # J/ Z; {, Y/ V
- digitalWrite(2,0);
8 N h! R, r2 M0 r3 h+ M! b - mainAction();. j& k2 X2 W' w
- if (digitalRead(0)){
2 [( b* m" [8 U5 D8 y/ ? - ESP.deepSleep(0);% {, [% l' J- s, B
- } else {
( a0 d! ~, @& E: Y$ R* M7 V - server.begin();$ a6 V+ J6 D. Z. r0 @1 o) o
- }
; A# V3 Z7 q* j5 z6 G: D - }+ C9 @" d" |1 B2 I; L/ e
- void loop() {
) q Q' ?7 A: p) r j - server.handleClient();
' [6 }' H- ?% M% }8 l - delay(1);3 w# X! D" W3 _. X4 u
- }2 r# {7 K, {( O7 _0 H3 O7 v D
- String doGet(String url){
( @0 O, m# d6 J7 b - if ((WiFiMulti.run() == WL_CONNECTED)) {' [: ~& T, l3 _, I/ K ~ h5 c
- HTTPClient http;1 E" i) D4 o5 x% p, ^ b- R
- Serial.println("[HTTP] begin...");
3 Q/ H ?$ `, [! U' W1 j - if (url.startsWith("https")) {6 j+ j" y2 q n1 v" S: ?+ L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' q; E3 Y3 H8 Q" ~, I7 b - } else {
! R a7 u9 G b7 c0 |7 Q4 ?4 j. q4 X - http.begin(url);% p( Y0 v# W; k4 h
- }( @* N3 B1 k2 m; o0 J7 U
- Serial.println("[HTTP] GET...");
# F0 ?( E7 g1 h; k" U - int httpCode = http.GET();) ?) X, |7 f9 Q8 ~( T$ J4 P
- if (httpCode > 0) {. p/ X2 r$ }6 `# ^7 l3 C2 k
- Serial.printf("[HTTP] code: %d\n", httpCode);
2 Q- d# b0 j+ i* x/ r" W9 O$ ~ - if (httpCode == HTTP_CODE_OK) {, a/ g. P" |) p! \# N; [
- String payload = http.getString();6 h* F0 W+ [" A7 Y+ |
- Serial.println(payload);
0 [* v+ V3 a9 M$ L3 o4 B5 ] - Serial.print("\r\n");
" c: ~7 n/ w' \2 D( D/ s' [ - return payload;
, V8 X/ _7 P0 K7 b - }
3 z; a( J4 Y0 r: ^ - } else {
* i6 ]4 X& G, `# I( e- h" J - Serial.printf("[HTTP] GET... failed, error: %s\n",, e$ t/ U$ x: \6 w( u2 \2 k1 j
- http.errorToString(httpCode).c_str());9 w3 g) J V, G5 T& F2 Z
- }' r& D1 O) [0 d. j2 i
- http.end();9 W" G& g3 r6 f
- return "";
3 [/ f+ B i. V2 b4 e1 G - }
, E; X3 _$ A! w: G# ^5 E- m9 T - }) X5 y. }! Z, P, q) w& r& @( t* ]
- void mainAction() {' Z9 O$ ?1 j& ~1 X6 h
- // 发送请求9 Y% {2 n* }6 Q- u2 d, V& ?
- doGet("http://google.cn");
5 D8 h. y3 v6 \5 l' q& v - }# w ~) @! M4 Y4 d' x% {3 u6 f l! X
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