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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)
$ f& y# h, s2 N( R3 D$ B# S- #include <ESP8266HTTPClient.h>! E" j6 ]! q3 h4 j* @
- #include <ESP8266WiFi.h>2 ?8 Q! R. V1 _; R
- #include <ESP8266WiFiMulti.h>
! W) ~: `+ t* x" H/ @4 W - #include <ESP8266WebServer.h>& u* ~5 d" f9 h: G* q. d
- #include <arduino.h>3 B3 \' r9 Q2 m: }) d: O
- ESP8266WiFiMulti WiFiMulti;: X2 Q$ ^4 U2 t0 W
- ESP8266WebServer server(80);' p8 v- g$ H2 h2 @" g0 }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 c: f: x( i! ~" @/ k+ k
- ADC_MODE(ADC_VCC);' w" y5 U2 ~( ]; P" r3 x$ X6 B
- void setup() {1 K$ T( I3 y0 b' v! {5 n; n7 x# G
- Serial.begin(115200);
4 B$ ~7 u2 k: y( U7 _* k - Serial.print("\r\n\n");5 l! [5 D+ w9 ~9 L
- pinMode(2,OUTPUT);" I9 X+ w5 V t$ M1 G; ^
- // WIFI+ x, w4 ?: p$ i, n N
- WiFi.mode(WIFI_STA);
' l1 o( a1 O& `- _ - WiFi.hostname("Sparkle");
: R+ [" o- P1 G) e' i - WiFiMulti.addAP("wifi ssid", "wifi password");
6 b: ?$ _: b0 o. X - int tryNum = 15;
. `: l. B1 d% w - Serial.print("Connect WiFi");
) ]) G4 u, J+ |" v$ N1 v" c - while (WiFiMulti.run() != WL_CONNECTED) {$ m' Y$ U/ y% \3 D# z
- digitalWrite(2,0);
0 o6 K8 Q) n- I! a2 m' _3 i) ]* V - delay(200);
8 r% O! N9 Q2 c) c% c - digitalWrite(2,1);
( ]" c6 P! b5 y9 F! t q, x+ J - delay(300);: B2 r7 U' H) N1 O. ]( [8 L* c
- Serial.print(".");
' P, I7 c5 ]/ W - tryNum--;* Y6 U% ^. t& Z* g: \, O' [
- if (tryNum == 0) {
8 T" S3 p* f% b" O; {+ v- c( G - // 1min# o4 E" A9 `0 @3 |5 l; w
- // ESP.deepSleep(60e6);
3 C9 M% q' a8 l+ w' ~ - ESP.deepSleep(0);
! b- f0 s4 J. k1 _+ _ - }1 P# L. V* s: W9 O9 k! w0 S6 g
- }
% a1 o5 o) y* V" R( c$ a - Serial.print("\r\n");" v( r6 I3 ?/ k, _, u% |, P3 x
- digitalWrite(2,1);
2 b/ p0 C, z u: K- i - Serial.print("IP address : ");. ~ |! t" u0 z; d% T# Z
- Serial.println(WiFi.localIP());
6 N; t9 w( X8 ^/ W+ J7 U8 B - server.on("/", HTTP_GET, [](){
$ b7 a" T3 ]2 u6 { - server.sendHeader("Connection", "close");* I' z) Z% W# B! ]/ V! f. o
- server.send(200, "text/html", serverIndex);
! B6 L* g, m5 X - });6 [: @- g9 h& S! h$ t& Q
- server.on("/update", HTTP_POST, [](){
$ u& M3 m$ g: i- I6 q) o2 G - server.sendHeader("Connection", "close");
" i d2 {8 |3 a3 J# f. Z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& i; _2 F4 _! J) L% W, H - ESP.restart();! s |* H, H+ D* d; d7 m1 R, l
- },[](){
2 Q) @5 [4 E1 D - HTTPUpload& upload = server.upload();
1 H. Y0 c/ E1 x - if(upload.status == UPLOAD_FILE_START){+ [6 Q+ u+ u' t8 B0 ?
- Serial.setDebugOutput(true);
& J) X4 S0 s, W& f3 j - Serial.printf("Update: %s\n", upload.filename.c_str());
6 K: n3 A- o$ M3 k3 e* W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( |2 r$ t7 t+ t. x - if(!Update.begin(maxSketchSpace)){6 E9 j0 v ?7 G
- Update.printError(Serial);
5 o( I3 ^% t- H( q5 d6 G - }& ^3 v0 X+ g5 W7 E
- } else if(upload.status == UPLOAD_FILE_WRITE){; k$ O9 x- z4 g
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. t9 n/ b% u' A# O
- Update.printError(Serial);
& U/ \9 D' {2 i. u9 O6 g+ d; r - }
) z. z1 V6 @+ D' I9 E8 _; V - } else if(upload.status == UPLOAD_FILE_END){: C' J3 v5 @) s
- if(Update.end(true)){- n" Q2 Y) W0 \' i0 D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. D6 h( P- K6 H. h- ] - } else {4 @' F; K% S% G
- Update.printError(Serial);
$ s% [* L4 U: _- j7 L - }
6 S: Q2 g0 u# w5 @- `; M - Serial.setDebugOutput(false);
1 x+ f2 K. C6 n! ^ r$ h4 o7 N - }( j( ?6 |: }% p: `# j
- yield();* C" |8 R$ Y+ Z- ~( Z
- });; s0 ^( F( v( \4 V/ V, k
-
9 O+ ~4 T" `6 u: v) v - digitalWrite(2,0);
- ]) b, {2 u4 y: G9 W1 w# e - mainAction();
, D( O! f! C# s: Q$ K9 W4 D6 { - if (digitalRead(0)){
/ o. O9 ?3 F _. B4 W! ^9 Z/ i - ESP.deepSleep(0);. p. R; O. C6 B6 d# R' _+ j
- } else {1 I. c7 y% T J
- server.begin();( }. l' b% I' N3 _2 e% u
- }& k$ u9 F' A7 L! c
- } u, U; c! J m7 w
- void loop() {
- c! y9 _/ K5 R) m/ f - server.handleClient();7 k% t# ~8 c G, _- Y4 {# o! z
- delay(1);
+ C: m5 e* g2 M; Z/ A, D4 K - }
7 i7 E1 ?& i# E* D7 m( I - String doGet(String url){+ T T- E0 v5 [! H
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, A; z% A, ~( i - HTTPClient http;2 B: X7 Z/ y/ y5 U0 C4 V6 x9 p
- Serial.println("[HTTP] begin...");
1 |* N: ^# ?# ?9 P- s# z& Z" b% l - if (url.startsWith("https")) {
4 u, N7 k& H. y0 ~6 P - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 j1 x I# y# f
- } else {- h' M( V; B; e8 f8 z; y) S
- http.begin(url);" K8 `; W! P$ { ?3 R/ m6 |7 O
- }
" j4 W4 E7 R1 \( F - Serial.println("[HTTP] GET...");
7 X G# p: U( M- L; ] - int httpCode = http.GET();* P, l5 h1 [- o: m
- if (httpCode > 0) {* m; y7 `) R' b* l" V- d$ u8 c3 K
- Serial.printf("[HTTP] code: %d\n", httpCode);
- u0 l& y$ H* ^0 ^ - if (httpCode == HTTP_CODE_OK) {
, \- u( N: E! S7 l* f& z8 h6 T - String payload = http.getString();- h9 s9 e6 u1 W" u8 A G5 k- R7 s9 {
- Serial.println(payload);
) L2 C) L2 |8 Z' s- t/ U _& n - Serial.print("\r\n");) \/ \0 H$ H; V3 ^
- return payload;
' |7 _# B6 h) {4 u - }
3 M* X: m9 D4 G2 f; k* @: {6 c0 B - } else {6 ?; J* y/ }8 m1 h1 E# @/ d/ a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
* @ G6 c4 ?! u, r' s* j - http.errorToString(httpCode).c_str());
$ u7 n7 x; R: P \, J - }. d. m* b# P+ V0 x& ^" O
- http.end();5 D" U W% ? _9 [
- return "";
a9 T- u* L# J, f - }# }& a4 v/ E! ~+ w0 R
- }
/ Z! z* Z4 V6 y% u2 @ X - void mainAction() {# }+ g5 j5 i- \7 L# ~
- // 发送请求+ ~7 N8 A2 x* e! |: ^
- doGet("http://google.cn");8 Z( [! n, \* K( k- \' |
- }
) `0 f% _9 y8 ~/ V3 ?# X/ I R
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