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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)
$ w. B2 l; U0 Y, Z6 D; t1 w$ d- #include <ESP8266HTTPClient.h>
; ^9 v2 i" G" ` - #include <ESP8266WiFi.h>2 B8 H# h! [( `# j# k' o* f. w( [5 G
- #include <ESP8266WiFiMulti.h>
/ I3 E9 c- P3 j+ i0 f7 l - #include <ESP8266WebServer.h>
! j$ c/ J; z! Y& U) m1 B+ Q - #include <arduino.h>$ [# w. H' h8 H1 j, w
- ESP8266WiFiMulti WiFiMulti;
* w9 m# ^; Z/ b) P7 P - ESP8266WebServer server(80);& s5 v3 |+ e) S- g
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 y8 F* n% I- n. G# z - ADC_MODE(ADC_VCC);
4 S7 \$ v# h# \4 \ - void setup() {
. s, n4 W9 @/ ?3 s4 L& I- u - Serial.begin(115200);
6 S' K. a% n( T2 L - Serial.print("\r\n\n");$ h. W: X( e* c5 D" q
- pinMode(2,OUTPUT);
9 G0 {6 t9 j5 B; F s5 y! q - // WIFI! E# s2 j" l+ P7 s( m7 U: `0 H
- WiFi.mode(WIFI_STA);4 W9 ]1 l9 ?* d2 l
- WiFi.hostname("Sparkle");- U/ D3 E7 h f/ e5 A
- WiFiMulti.addAP("wifi ssid", "wifi password");
8 m1 T) F# {8 Y0 L* y/ h8 P - int tryNum = 15;$ B! T' f3 u9 Z
- Serial.print("Connect WiFi");9 T5 B: } V1 h& d- ^; f) u
- while (WiFiMulti.run() != WL_CONNECTED) {
+ p p2 z, w3 u+ g. r( p - digitalWrite(2,0);
, A3 G. b- w K- o/ ^ - delay(200);
; u$ a3 o/ ^6 E O0 g. u$ s" W - digitalWrite(2,1);' H+ b7 Z8 x; z! f$ r
- delay(300);
9 H/ V8 _9 P: O2 U& N3 _ - Serial.print(".");9 ]; o; k9 O0 d+ \4 c/ u; [4 l
- tryNum--;
3 ^. W( |& X0 ^' J - if (tryNum == 0) {, x0 N9 n) k+ y% R q
- // 1min
) r+ J1 O0 T8 R% o0 A - // ESP.deepSleep(60e6);
9 W# o4 R1 X! f; { R4 @+ Q - ESP.deepSleep(0);. A0 h4 B9 R' s" a: s
- }8 i; L; D# B6 k( { p
- }2 U. u$ K/ ]1 G2 e# P+ u% v( |; d2 N
- Serial.print("\r\n");
, c3 [" H7 u7 _# b; [. t8 O - digitalWrite(2,1);
0 G" }5 z, r$ I( g- D, h5 W - Serial.print("IP address : ");5 D, C0 L* n. K- m
- Serial.println(WiFi.localIP());
! S( Q8 t8 R; u6 g - server.on("/", HTTP_GET, [](){& h2 Z u1 |' Q, v( O! X
- server.sendHeader("Connection", "close");2 E3 J. s. \4 K) S6 \. ~
- server.send(200, "text/html", serverIndex);0 w; P+ n) h S* }1 a M4 p
- });
' }6 \. T. g" B! z6 H - server.on("/update", HTTP_POST, [](){( x) S. o$ U2 s
- server.sendHeader("Connection", "close");1 E- Q: n$ W2 v% w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) K" }5 W9 J' `9 Y' ]
- ESP.restart();
+ [) @+ n2 k& y! g& T5 B! M) e o - },[](){! M" G& e! ]1 h9 }1 t% N
- HTTPUpload& upload = server.upload();( A4 l" e, ]+ N( {
- if(upload.status == UPLOAD_FILE_START){" m, n5 u$ F! W& _+ {% H& g
- Serial.setDebugOutput(true);: ~; w: M7 \6 D& Y
- Serial.printf("Update: %s\n", upload.filename.c_str());
+ L; |: [$ s' r9 Y1 U& z3 y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 V- J6 r' ~& P3 ?/ s. E+ j$ W - if(!Update.begin(maxSketchSpace)){* U/ c9 x% j1 q9 Y
- Update.printError(Serial);3 ]6 @3 n) T+ J1 t
- }
, x4 c! B' r0 D& L0 R! ~2 q) R - } else if(upload.status == UPLOAD_FILE_WRITE){
N, [- r6 M/ }+ F' @& O - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( ]; a! G0 ?' ] - Update.printError(Serial);
$ E- G% f, h) P) t - }% M9 r; M/ C9 F' t! M! m; Z# _# Q0 ^
- } else if(upload.status == UPLOAD_FILE_END){
7 R0 U/ [% f% O! T - if(Update.end(true)){
7 k; N5 G7 R: P8 j( ^' l - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 Z6 i1 m, z5 z: i7 v - } else {
9 p# D8 U9 f- Z/ f - Update.printError(Serial);
: u, D9 X- t1 i0 a8 h# A - }( O! T) u" V' I% k) l
- Serial.setDebugOutput(false);
0 M9 l0 \2 _8 r. h0 s0 Y2 j! D - }( b3 Y. y% z/ \ p6 y+ }
- yield();7 n% a, K; r" F
- });
1 J0 e) ~% ~$ d - 3 g8 f5 y3 S }* B
- digitalWrite(2,0);( |2 M; {& V# d+ e' g
- mainAction();
2 E* w. l7 A; i1 H4 x - if (digitalRead(0)){7 Y' m, Y1 o9 h. f! \2 R
- ESP.deepSleep(0);, ?6 S1 U8 Y% R
- } else {& a9 |3 N0 K* K4 y2 E {$ T
- server.begin();& H$ l+ p+ s- B0 D
- }
0 \; K! v. ^- O" g - }
3 T0 K7 G( ?5 r. H1 a" E4 x* j! a - void loop() {
( N+ L+ \; X/ i$ U l, w0 C - server.handleClient();
- o9 p3 }$ J& W8 A; G2 c1 W" c: N - delay(1);
- c: x3 v. ^' ~, q9 s - }
" t6 u8 ^7 Q9 i$ x% n, {) | - String doGet(String url){% ~) o$ M2 p6 b# Y7 q7 k* _
- if ((WiFiMulti.run() == WL_CONNECTED)) {! x% e7 l. p5 ^
- HTTPClient http;% C6 R4 _2 S6 q e
- Serial.println("[HTTP] begin...");
q Y# S4 N7 a( q9 V - if (url.startsWith("https")) {% m5 G# \) V- L7 k5 V* `- s. O
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 }7 r* \2 k; w& { - } else {9 E7 ^7 B& E9 I% N( c( ^; A2 P
- http.begin(url);4 p9 c% ?; h0 V4 m
- }% G- i; k; W3 s+ h. e/ I6 j
- Serial.println("[HTTP] GET...");
) a2 h W! P9 L+ L) E - int httpCode = http.GET();, Z' Y% o3 I# z
- if (httpCode > 0) {
0 x% f) r$ q: q7 }# s/ C - Serial.printf("[HTTP] code: %d\n", httpCode);& M' `0 r( D1 k+ u5 d
- if (httpCode == HTTP_CODE_OK) {) X O$ O+ B- C5 l8 j6 l$ h
- String payload = http.getString();* S: t- J2 G1 g H6 N0 H( Y# S/ T& x
- Serial.println(payload);
- J" Y' d0 q H - Serial.print("\r\n");
* W( v! B8 }) _" { - return payload;
& w6 X6 E; b- q1 m8 R- \# ^ - }! \; B$ x* a# w; a' g
- } else {% q3 A7 p& y* M. X! F! V
- Serial.printf("[HTTP] GET... failed, error: %s\n",
2 M, T, T5 x9 t' D1 M( P. Y) U - http.errorToString(httpCode).c_str());
3 ^( d! R E6 @/ S! T" \* U9 T. j - }* E5 l# T6 x1 E1 z5 [& Q2 p
- http.end();
6 o2 K% n$ n; m, s6 f& ~( E% L4 g - return "";
$ N5 C6 D) f7 v* G, ] - }
) C- C2 ]: V* l! F" U& C- N* @. o - } Q, q; M5 I- C3 d
- void mainAction() {
7 k/ m) F4 K) K& } A" J# z2 t# ^ - // 发送请求
: ~) e: e3 b5 |* E - doGet("http://google.cn");9 v, r) L7 N5 }3 r N6 ^
- }8 u! e$ D1 O' e2 Q \
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