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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)/ ^( s" f8 t# p+ ~) r
- #include <ESP8266HTTPClient.h>
* \& U/ `" X6 n0 m - #include <ESP8266WiFi.h>
4 y u( q2 y5 z( T' A& A8 w - #include <ESP8266WiFiMulti.h>, Q+ p" j( ~! J8 I3 N
- #include <ESP8266WebServer.h>& ]1 C& @3 D' K% \ \8 V* W
- #include <arduino.h>
4 x' p$ ?9 E7 W5 D+ L4 c, N - ESP8266WiFiMulti WiFiMulti;. Q* s6 E1 f8 h# l* r, w6 W
- ESP8266WebServer server(80);" G8 h3 s% ~' W' Y, ]3 J' D
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ C3 `& T, R0 P: R3 A0 h - ADC_MODE(ADC_VCC);
) P0 G. K; ^9 B - void setup() {
' y; X% i8 U. E' s5 _+ Y7 e! k - Serial.begin(115200);
! f; {. T6 m' N+ _ - Serial.print("\r\n\n");
6 N6 r8 Q. ]) H; d' T4 Y - pinMode(2,OUTPUT);5 T, W# S2 @# x$ d
- // WIFI
# |9 u' E2 W" A( g0 k" f3 B3 z: ^ - WiFi.mode(WIFI_STA);
" t- X/ `6 f* j' _+ ?2 x - WiFi.hostname("Sparkle");
' X# L0 `' d O - WiFiMulti.addAP("wifi ssid", "wifi password");
# v: m" b3 T8 C, I" K" s: L' N - int tryNum = 15;& L; X* k2 g+ f8 y4 |
- Serial.print("Connect WiFi");! c5 O" k' z: F$ M& v( l1 W# @
- while (WiFiMulti.run() != WL_CONNECTED) {: J7 B1 o: t9 Z
- digitalWrite(2,0);
4 [5 N c1 z+ c# y+ q3 [6 y - delay(200); J, s0 x4 F2 W
- digitalWrite(2,1);
, ^6 I9 I6 l- Q* o1 j; y$ ?0 [ - delay(300);
; s6 d& ~* z+ z7 g* R - Serial.print(".");3 b. I: O7 m3 j3 c- h5 F) y; P8 F ]
- tryNum--;
' X- C7 g( G! M/ }( P6 J+ Z, v - if (tryNum == 0) {
1 g. c4 a9 o ~ - // 1min4 K! m3 `3 {* ?$ R1 B. n" `! n+ n
- // ESP.deepSleep(60e6);- E& O x) n4 W) H9 J) j2 o
- ESP.deepSleep(0);0 r" U4 Q; q$ X( T$ ~. B
- }- C* n S* f$ F# d& P- A
- }
9 K& i/ f: d l( _; i o - Serial.print("\r\n");3 M N# E& Z+ T% s9 {. V9 f
- digitalWrite(2,1);
% M6 O% a/ q$ e8 W: _- z - Serial.print("IP address : ");1 Z' d/ _7 n. g) n! h- q- i2 ?
- Serial.println(WiFi.localIP());
. g" \: g7 \, | - server.on("/", HTTP_GET, [](){
5 y$ u) O! ?: N$ b - server.sendHeader("Connection", "close");
4 U. o6 r& p$ k: R - server.send(200, "text/html", serverIndex);
+ C& \, B# D7 X7 ~" p { - });
0 ]; H3 D1 Z3 P8 f - server.on("/update", HTTP_POST, [](){1 d; A+ @0 l+ b. D- F
- server.sendHeader("Connection", "close");
0 i3 s( U9 c$ h! y$ ^! D% S; J! A) J" k - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( c( ~# x- @$ b r# S, m+ u' ^
- ESP.restart();
2 @( ]. E O, C) K/ W - },[](){* d# K: R8 Y; b3 H7 `: A3 K
- HTTPUpload& upload = server.upload();) g$ o% B5 y+ p, h# ]
- if(upload.status == UPLOAD_FILE_START){) G6 Z% [3 L5 O9 H2 H! k. c) w$ ~
- Serial.setDebugOutput(true);
* ]$ X3 w5 p$ e9 G7 F - Serial.printf("Update: %s\n", upload.filename.c_str());
. D& {0 C$ O: Q1 b - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' N. i5 U0 H0 z - if(!Update.begin(maxSketchSpace)){
* X" A& A- g, D9 E/ v- k - Update.printError(Serial);* y" H, ]. w/ L
- }# m5 y8 L2 N9 x9 @; U
- } else if(upload.status == UPLOAD_FILE_WRITE){
4 F1 M1 M0 a/ w- ? - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 r& T) n P+ H$ W4 P% w8 } - Update.printError(Serial);
& Y& P) h; n; u - }/ [0 Q0 f! z ~1 G- R
- } else if(upload.status == UPLOAD_FILE_END){$ Y' N" i9 i: t& S# P
- if(Update.end(true)){
$ C5 d ?( Q3 T/ M$ \& l0 k - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 {2 s. U1 ]/ \3 W: n& V( p4 S f: k
- } else {
S. l( O* R' W. ? - Update.printError(Serial);
- @3 |: {' z" h% F+ q - }
4 H$ o6 m5 }/ o% j7 }7 n1 g - Serial.setDebugOutput(false);, l( S! P* g8 S( \% h8 v
- }
. |# c# U" E/ V6 a - yield(); L* c1 r* k d5 j" K
- });
4 m7 v9 P, h$ q3 q& F1 E @ -
( P$ s! s+ O, o# ?3 h: w. K7 c - digitalWrite(2,0);
7 P" l+ s& b2 ?5 }, n2 B3 T - mainAction();
0 a3 H3 o7 ^" q! }- B; V$ _ - if (digitalRead(0)){
+ ?) M0 k5 g0 `3 m: } - ESP.deepSleep(0);
$ ^; J* Z" w K - } else {- ~1 U- Z! e9 @. H
- server.begin();/ p* Q% U1 a% Q6 ~8 E9 p* W
- }
0 j( j2 [- a m5 {5 x2 C x - }
+ I( o5 p, @4 M8 }8 V - void loop() {
; L5 [- j, \; q4 a9 Q/ ?. S7 q: c - server.handleClient();
6 T M6 ?$ Y4 J3 |! q! H. A* I - delay(1);
. P/ y" z7 |/ T/ Q5 Q) ~; T - }
1 ?" Z% }9 f$ W - String doGet(String url){( f' ^! M1 k9 I8 `2 N
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& K: Q: O/ Z, P - HTTPClient http;1 V- S; }2 }, P- Q' H
- Serial.println("[HTTP] begin...");/ J4 D0 w- m" @( g7 W* f7 X
- if (url.startsWith("https")) {3 w7 b' \* K: R: a( k8 I# V
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% R5 \3 Q8 p3 F+ r) Z
- } else {6 M4 V; e+ A% P+ n9 |
- http.begin(url);
: W6 P% p# n9 |& b6 T - }9 I( M ~/ g# r6 @
- Serial.println("[HTTP] GET...");
& A- r% d. a# I3 [ - int httpCode = http.GET();
" J2 t1 T9 B& T/ m' g - if (httpCode > 0) {3 N7 }! U" \. W6 s) w% ?
- Serial.printf("[HTTP] code: %d\n", httpCode);
. z2 ?+ O+ J; n - if (httpCode == HTTP_CODE_OK) {
- M, \! z+ B5 H! g) } - String payload = http.getString();* e: i: U3 @7 }- q; ]/ T+ B
- Serial.println(payload);, A* o/ {2 n' H* ^ E5 k+ w
- Serial.print("\r\n");
* _5 p. J- |- S' @' `$ \ - return payload;/ I5 Y. q; @* |1 Z) d8 h
- }( {: l* J" X% B/ o; l' I& @, y
- } else {
8 h7 h' E- Q: M/ [: _! M - Serial.printf("[HTTP] GET... failed, error: %s\n",7 Y7 h R) J$ [$ C/ q
- http.errorToString(httpCode).c_str());8 U) C2 h3 f( E& G+ A" g8 }( H6 u
- }. ~/ g, |9 U" I3 D
- http.end();
9 {" g- z9 q N9 S5 D1 M4 J - return "";
, e- G( O r5 t( p0 A* N; s - }
/ A5 G# E- z2 X( C9 l" G - }
% m+ M. Q( \) e - void mainAction() {
* ?5 T1 @+ Y8 e% ` - // 发送请求
/ e6 Q$ [) A" s9 L' d7 n - doGet("http://google.cn");
: x7 T4 B D5 M6 X2 ^5 t4 N! h - }
& u$ A4 K0 L! F" A* E
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