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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)
5 O# T$ C( u3 c- P: K7 v. ]- #include <ESP8266HTTPClient.h>
; V7 }; m0 X+ V c - #include <ESP8266WiFi.h>( l8 K. \: V6 g. R. z3 H7 [: Y- Y
- #include <ESP8266WiFiMulti.h>+ f" x3 |: o! ?4 Y) l. U
- #include <ESP8266WebServer.h>
, _1 B! V* U4 p6 S( Z S - #include <arduino.h>% H: Y' X( }+ l
- ESP8266WiFiMulti WiFiMulti;# L7 E) ^2 [9 S' ^2 ]7 y
- ESP8266WebServer server(80);9 I2 c5 U# N3 ] [ E4 P
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 t9 e4 S) [" V- D/ M - ADC_MODE(ADC_VCC);
) j, Z. u+ t4 f - void setup() {
# O0 t3 k) ^9 U, Y) \: o% ^' z$ A" i - Serial.begin(115200);9 D" g; Y W# r. ?4 ]- A
- Serial.print("\r\n\n");
& }1 }5 z% i+ k8 Q/ _ - pinMode(2,OUTPUT);' h1 k4 V' o' c6 j/ d: ]% l3 A
- // WIFI( a- g# j7 X1 @6 Y8 @
- WiFi.mode(WIFI_STA);
& x; E% d4 n5 _. S6 ~! G6 J - WiFi.hostname("Sparkle");# ^) H; W, M" ^4 ~+ M* u9 n
- WiFiMulti.addAP("wifi ssid", "wifi password");0 s0 @2 D3 R% e; V. X1 P
- int tryNum = 15;
8 I* W& b _7 P; B1 k' D - Serial.print("Connect WiFi");% L/ g/ H' Z* S) p/ z- M3 |
- while (WiFiMulti.run() != WL_CONNECTED) { V& G5 V, q* @( V) c& U. b
- digitalWrite(2,0);! f7 d; |- V, u7 Y. q5 a
- delay(200);
! A( B/ K( d/ {2 t - digitalWrite(2,1);
8 H3 k$ E f2 e3 A X. w. \* U$ N - delay(300);
$ ]6 ?) g' `- p) D- E; t - Serial.print(".");% E$ F7 E# ~* i8 r) ~; s
- tryNum--;9 U) _& ?1 W7 B% M
- if (tryNum == 0) {5 J7 h E" ]$ L; R3 q
- // 1min
1 `# ]" h+ B/ Z) K0 N - // ESP.deepSleep(60e6); S5 |: [( a5 K1 `, n
- ESP.deepSleep(0);) ?, }+ L9 T! u: M3 v! L! T0 G/ w, l
- }
! s3 ~. S* X8 V1 K& x- u0 J! n4 E - }
) J B" t6 J6 Y; u; E6 ?; P - Serial.print("\r\n");
+ |0 e3 X- y7 A# ?7 A( n2 @ - digitalWrite(2,1); M+ ^ @) e! H% N8 z0 C3 ~7 w/ S6 ~
- Serial.print("IP address : ");: {- P% ~1 s" m; u( l0 [) V, P
- Serial.println(WiFi.localIP());. F# U1 E, V4 Y, l& D/ D
- server.on("/", HTTP_GET, [](){" ]' }6 s% Q$ _( e
- server.sendHeader("Connection", "close");* T% h8 y4 N/ a5 ?; e
- server.send(200, "text/html", serverIndex);
- z- k) `' y0 J. w - });1 g8 R' A& j. n7 a! b5 V m
- server.on("/update", HTTP_POST, [](){, D% y3 i, m3 d5 p' [/ E
- server.sendHeader("Connection", "close");
% H; [# P! F9 O. L- {! M3 i: L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: \" ^2 N. s. r - ESP.restart();3 |1 v$ |4 d! j" L
- },[](){+ w [" ?; Y+ z- |% Y( n
- HTTPUpload& upload = server.upload();
0 ` Z6 K) v) D - if(upload.status == UPLOAD_FILE_START){
5 N: }% _5 o3 }' y+ o$ I7 e - Serial.setDebugOutput(true);
) w/ T* Z( n4 E: F1 ]$ ^ - Serial.printf("Update: %s\n", upload.filename.c_str());( Z, C. y: V8 }* h4 l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' q8 ~9 D7 V/ U
- if(!Update.begin(maxSketchSpace)){
$ |8 K7 P B5 B' U - Update.printError(Serial);
5 l" b3 p( o2 s4 f0 }3 t - } Y, g2 f9 P. N0 _$ F
- } else if(upload.status == UPLOAD_FILE_WRITE){1 Y# k8 i4 C" r: Z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 N- l3 l' x1 i; A - Update.printError(Serial);
4 {& ?/ m7 L, _+ I2 H - }
3 b5 U4 P( ^# l, d/ ] - } else if(upload.status == UPLOAD_FILE_END){: k9 _6 @! J) m0 x% @
- if(Update.end(true)){: {2 p5 K# g. Y# O( a: D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 J" {& _( o r8 N c4 E L8 w - } else {
% @ l) S+ d, N% w - Update.printError(Serial);) x$ e' g& u3 P7 \
- }
0 l& T, o$ `. X6 N0 w( X( r7 O - Serial.setDebugOutput(false);
) m2 D+ K1 f6 V$ r L - }% y8 C, ~# J* p1 M# W) }7 ?5 m
- yield();
* O4 d& G* W+ u* x9 o; Z+ e. L" L - });
# ?/ G) }/ h2 i9 { -
/ f& w% l4 ^% y& g$ Z& v3 ? - digitalWrite(2,0);
: s$ J7 b+ S# f7 E6 C6 P - mainAction();- |0 J' m+ i; o$ n
- if (digitalRead(0)){
: q$ \ Q* }: f& P - ESP.deepSleep(0);+ V0 u. y3 l7 Z' {: J# m
- } else {) x- y* b+ ?# \: J4 `6 \, M0 `
- server.begin();
' P2 S/ r6 n' M# D3 E! ` - }. ~0 q, L+ M. P+ u. P
- }5 T8 q7 B: s6 y2 f9 M6 g9 N, ?+ o
- void loop() {5 @ `; O- A* [
- server.handleClient();
+ t8 d7 _8 Y' X! A - delay(1);
+ j4 Z$ _$ C+ |9 G! B. F3 C0 e - }
1 `4 I9 @2 g% c; C3 d1 ]2 G - String doGet(String url){
1 n8 G# n8 {4 \# i - if ((WiFiMulti.run() == WL_CONNECTED)) {
% G; d; M" u4 n - HTTPClient http;
. q0 b# x. e- [8 ? - Serial.println("[HTTP] begin...");
* O, z# r4 L( h7 T0 A9 ^1 _4 N& i" ] - if (url.startsWith("https")) {
8 z' e! H8 I. O7 T: }! t. [. J, N - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' F1 }6 V$ u$ w! ]
- } else {2 q) a$ @8 F1 l1 b3 E
- http.begin(url);
/ q# q4 n( h9 z7 y; z - }- F6 Q2 |: l$ @# f' b4 e: f' o
- Serial.println("[HTTP] GET...");" p5 i3 ^9 a1 Q7 \- B0 z1 K
- int httpCode = http.GET();
' q v' b/ ?* w* p: A - if (httpCode > 0) {/ s3 \2 o7 x" k' T4 V) M
- Serial.printf("[HTTP] code: %d\n", httpCode);
- R5 k. M; v# N - if (httpCode == HTTP_CODE_OK) { w! Q( J5 @# J8 `5 p& _8 @
- String payload = http.getString();' g" H$ t9 W! v$ }# j- Z
- Serial.println(payload);
1 ]4 B: G0 n1 b- `4 c4 a9 i9 u6 m7 b8 q - Serial.print("\r\n");
8 F/ ^# m z/ ~- n5 S( X - return payload;
5 N' Q7 j5 r3 P4 w5 ^" N - }3 @) t" k- h( ~ b) c3 B( [# f/ Y
- } else {& p. q! U; \7 K1 b* _
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' o% d' n L' |( f) n% |0 _ - http.errorToString(httpCode).c_str());9 j/ ^; ~. [, ~/ k( A7 H
- }' ~5 c, S. r- k% a, D A; Y5 e
- http.end();
1 O* z. [% }" [6 T. h5 ?$ ]; D - return "";
' h6 K3 [- }% m+ o( u( q - }6 r' M+ [% x( U
- }6 A$ x) x5 c4 ?, k
- void mainAction() {
- F( r) w7 m5 B- |& n- }' c1 g - // 发送请求) z: g, L7 }/ O% E0 G+ }: Q, n
- doGet("http://google.cn");
, ]$ ]1 W9 `# i8 l d; k! A9 X - }
5 B2 f0 H |$ Z: ]1 Q v9 H
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