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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 O4 a) q; V3 Y1 G5 S# |/ p6 r
- #include <ESP8266HTTPClient.h>
6 O$ b8 s& B& T - #include <ESP8266WiFi.h>, h( v: D/ a/ Y- n( O% F" E& E
- #include <ESP8266WiFiMulti.h>- k5 d7 M' ^$ Z! ]2 z8 ^* v
- #include <ESP8266WebServer.h>1 A* P( ^0 L9 G1 _2 i& w0 ~5 U1 `' R
- #include <arduino.h>
! T* P: I* ?# j; d - ESP8266WiFiMulti WiFiMulti;1 {- X7 I& |+ w$ K
- ESP8266WebServer server(80);0 v% v2 U+ y0 S3 P
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% r' P. U% H3 o7 p7 r4 i2 s4 e& n, Y - ADC_MODE(ADC_VCC);, V; L! M4 a3 u) V/ g5 p
- void setup() {
+ Y) ]3 I( R2 q3 ~& Z6 ~ - Serial.begin(115200);2 c/ L' P/ ]9 B5 k$ F/ `( z) N
- Serial.print("\r\n\n");
( r/ P2 X. n5 U - pinMode(2,OUTPUT);" Z8 F) T4 V: M- L6 y! R0 N
- // WIFI
6 k a$ C3 b7 O, M - WiFi.mode(WIFI_STA);* x5 J. V3 [; L9 c0 E) {
- WiFi.hostname("Sparkle");% H% ~, [1 \. W- s
- WiFiMulti.addAP("wifi ssid", "wifi password");6 R% w% ]3 U" Z- `4 T
- int tryNum = 15;
- l/ ^3 k( C1 P: B - Serial.print("Connect WiFi");
! U2 H! j, m2 z - while (WiFiMulti.run() != WL_CONNECTED) {
+ x' h' \* Z8 U5 E9 b2 \. O6 I; ]/ } - digitalWrite(2,0);
0 l% \3 g- [' w% T' J9 I - delay(200);5 a) G; p- U2 n) k8 Z7 D; u# P
- digitalWrite(2,1);
! ?* v2 V A) i - delay(300);
# | \5 `5 [* s - Serial.print(".");. o9 F* u- N0 M, r6 W. c
- tryNum--;
0 K* L0 x M" T7 f9 k7 O: i* d) E - if (tryNum == 0) {% m9 f0 o( k3 @7 G. G
- // 1min: Y# j) g k& D" y4 o$ h: p
- // ESP.deepSleep(60e6);9 _: k2 ]% l% ~/ P; e4 h' I
- ESP.deepSleep(0);
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- }
9 Y5 e2 u4 N: U v - Serial.print("\r\n");4 W7 k8 P: G# ?5 E+ G, I- ~
- digitalWrite(2,1);
1 [/ b7 g( s4 _/ @9 s& [4 A - Serial.print("IP address : ");2 g# V6 B6 Z6 Q' X# t
- Serial.println(WiFi.localIP());
4 m5 z9 B+ i+ |; h - server.on("/", HTTP_GET, [](){
- ?2 g3 \& n1 c! j, m4 }5 u - server.sendHeader("Connection", "close");
' i: z' X# z- M/ A - server.send(200, "text/html", serverIndex);
+ B/ W* |1 W) V: t# i - });* @& P8 m" F$ C% S4 j; \
- server.on("/update", HTTP_POST, [](){ R: A# M, P. W& ]
- server.sendHeader("Connection", "close");7 e6 L: e2 R: L) i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* e& }) k/ g6 b' P - ESP.restart();* Z2 m; l5 a/ ?& y) j
- },[](){4 O9 p2 v$ s! M# J$ _
- HTTPUpload& upload = server.upload();0 Q! |4 l. |% N" J& d
- if(upload.status == UPLOAD_FILE_START){
. L4 W" O! ]" `% c$ J* d) y - Serial.setDebugOutput(true);
6 l* ^8 o: R& Y5 C; o - Serial.printf("Update: %s\n", upload.filename.c_str());( M( D) g$ _. W" _4 J/ Q5 E8 {9 V' F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; w' P4 X' |/ z7 U, t; F - if(!Update.begin(maxSketchSpace)){1 ]3 r7 W1 ?6 m Z: j
- Update.printError(Serial);
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- } else if(upload.status == UPLOAD_FILE_WRITE){9 G1 \" ~% n6 G/ E( J: J$ p0 f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. N5 @9 H5 o7 F - Update.printError(Serial);
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- } else if(upload.status == UPLOAD_FILE_END){( W( h+ \4 l" H6 u+ E- f
- if(Update.end(true)){
9 B, I. _4 o* [- H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. M) G3 r/ f9 e! C& H& B
- } else {
) B* t4 S2 N& m6 D7 A - Update.printError(Serial);4 Z- {" }# B8 U3 ? C1 l* ~
- }7 q$ t+ w5 t0 }0 w2 _& f2 A
- Serial.setDebugOutput(false);
+ r: h4 O- W Z - }
y+ I+ v& C2 K5 u0 ?- b8 A - yield();6 u8 W/ R. c0 {, @
- });
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- digitalWrite(2,0);
3 E6 t o: X: e+ [# N4 d: J - mainAction();
% t# Q1 N* v, _- A$ x - if (digitalRead(0)){
" n0 t1 V" O1 a - ESP.deepSleep(0);9 E( N4 h _/ r$ [6 T4 x6 y T+ m
- } else {
% @3 |* o: }/ X7 ^ - server.begin();
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- }
' u! V' r8 V7 o0 v& G - void loop() {' g ^& Z5 l* O2 [. v5 f
- server.handleClient();
/ e9 Q4 Y- E/ S$ I - delay(1);
; t' b, s0 A0 @+ @. @ - }7 G) ~- s( n( z
- String doGet(String url){
5 C$ F) r; D0 T* R# m; D - if ((WiFiMulti.run() == WL_CONNECTED)) {! l- v$ C# g; Z8 @
- HTTPClient http;1 v4 W- D$ D" v8 ^
- Serial.println("[HTTP] begin...");
& w& R& J* V0 E. @+ \- a9 p - if (url.startsWith("https")) {
( \+ Q" c2 V! `6 ~' Y$ n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); _8 N2 L5 \8 x
- } else {6 A4 ]' @# m+ w6 S; [- M
- http.begin(url);0 A$ V) F+ }- o0 w( ^8 N4 ` F# P) u
- }
+ }, \1 l/ @2 k - Serial.println("[HTTP] GET...");, ?6 _2 N+ X) \
- int httpCode = http.GET();
, h. h6 [# _* @) s6 \8 { - if (httpCode > 0) {- |7 d" K) q* x
- Serial.printf("[HTTP] code: %d\n", httpCode);
' x% G& v( k# I - if (httpCode == HTTP_CODE_OK) {* ^7 J0 O% | m' A/ T
- String payload = http.getString();' ~, f, E9 n9 ]& ~) f+ c9 m5 }6 s7 k
- Serial.println(payload);
0 B& p. w8 I8 k: v. X - Serial.print("\r\n");
6 E! ]" n/ G2 h7 R - return payload;
4 ?5 G, i" C3 o6 {- n& N9 ^! E - }
$ v4 M. N) E2 x4 K - } else {& d# q f+ _ r, t8 X( e+ F5 e0 Y
- Serial.printf("[HTTP] GET... failed, error: %s\n",8 U' f$ z& g8 [5 V% h
- http.errorToString(httpCode).c_str());9 j% p- K# V( P2 p* z/ H
- }
6 s, _$ s1 L1 t8 l - http.end();% h- k5 T9 w6 n' y, f5 m
- return "";
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- }( ?; k/ t) k) o. C- h# V
- void mainAction() {3 K1 l3 a( \* \/ p& U+ y- s0 O' f
- // 发送请求
% p/ H7 N" R+ ]0 @$ T! ] - doGet("http://google.cn");
) \6 p. ~2 k2 t, C9 c0 |% e2 ]" V - }
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