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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)
6 K$ l8 \: C2 Q& M4 z- #include <ESP8266HTTPClient.h>% K' G% U$ ?/ |
- #include <ESP8266WiFi.h>
; O( \( U8 G& \8 @6 _. m/ b! v - #include <ESP8266WiFiMulti.h>" {( v6 K# w4 h$ L; k
- #include <ESP8266WebServer.h>
- G$ v2 V: M) c5 l# m2 L - #include <arduino.h>% v3 q" Y+ R# `. \1 G9 R
- ESP8266WiFiMulti WiFiMulti;9 D! l& c; a: ]! M' M
- ESP8266WebServer server(80);) m( m, T, E* ^1 e( Z. }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ T0 T5 ]3 P% s - ADC_MODE(ADC_VCC);4 ]- k1 R, V9 ^' [9 l! \+ n% X5 P
- void setup() {
( {) E+ b* f+ d* j3 Q - Serial.begin(115200);- G3 F3 S6 z. O# B
- Serial.print("\r\n\n");
# _; F1 V D2 }! ^6 z. L' r - pinMode(2,OUTPUT);
; U* g/ O7 ]* { - // WIFI
6 Z3 C, ^8 A8 t; x; {. v& o - WiFi.mode(WIFI_STA);* ?4 I( d1 H V
- WiFi.hostname("Sparkle");3 k$ b) L+ n0 e4 N
- WiFiMulti.addAP("wifi ssid", "wifi password");7 ]2 R O! v" V5 t- J
- int tryNum = 15;/ [/ s9 I6 p; r4 y1 f
- Serial.print("Connect WiFi");. n3 Y) R0 z. T. B, ?; P, p& Z
- while (WiFiMulti.run() != WL_CONNECTED) {7 ?$ q9 F* k0 d' T
- digitalWrite(2,0);+ l1 |7 u* {1 m& x
- delay(200);
; e0 Q: _+ C% u - digitalWrite(2,1);2 I1 u4 M" n5 p! f
- delay(300);8 v. q% `+ `6 g; N% O
- Serial.print(".");
, q& v5 J/ f% G, Z4 e; ^ - tryNum--;
0 p5 r" u6 Y$ E. }+ C* f% m1 u( Q - if (tryNum == 0) {( w' C! K6 D/ [* T! H. a
- // 1min
7 I ^% j9 R) p+ n; {$ n, H# ` - // ESP.deepSleep(60e6);- P7 o8 M! v8 }7 A. E
- ESP.deepSleep(0);0 n. P6 N# s6 n0 s
- }! f7 T' ~. ~. q" f" X' m
- }
: E k. v2 ` _1 s$ E - Serial.print("\r\n");
9 P: D* I6 m, f z0 ^, F - digitalWrite(2,1);5 m! V2 _/ V7 o, D/ @! \
- Serial.print("IP address : ");8 Q- U+ U T3 j
- Serial.println(WiFi.localIP()); G) u8 l3 q9 \: c/ r
- server.on("/", HTTP_GET, [](){
+ D0 ?4 _6 x7 R7 w: K( p - server.sendHeader("Connection", "close");
_3 c3 G- V& r( Y& a - server.send(200, "text/html", serverIndex);
8 ?, L4 B/ S7 i: ^0 d `1 t - });
8 Y8 w& N) L# P$ d& T" _* O- h - server.on("/update", HTTP_POST, [](){
) d1 T" y, O, y6 a* q! T+ x - server.sendHeader("Connection", "close");) w5 u4 R- W5 H2 U2 R- X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ [& G: C& s7 c/ a! X2 g - ESP.restart();- L( V1 [% Y1 F7 F( P
- },[](){
; M, C4 F6 u4 T" d% F - HTTPUpload& upload = server.upload();
' H- `: n5 j& R. c4 R. t1 O+ F8 | - if(upload.status == UPLOAD_FILE_START){
- ]' e- E, l5 m2 p - Serial.setDebugOutput(true);
! T4 `% j, v4 X ?- v, q/ q" K$ v - Serial.printf("Update: %s\n", upload.filename.c_str());
3 O, P3 T* n% S) H - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 d% U; C! V) i6 U5 ] - if(!Update.begin(maxSketchSpace)){: }6 F0 Q h0 l; }$ E, P3 V6 R( n
- Update.printError(Serial);
$ N& s8 b0 i3 o& |+ C - }1 A' n# t# V% L
- } else if(upload.status == UPLOAD_FILE_WRITE){
( S0 f0 x/ ?* m9 q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 B9 |9 J; E7 t - Update.printError(Serial);& l! [0 K, H" Y3 G$ O! h
- }
8 J' X2 ?2 E0 E - } else if(upload.status == UPLOAD_FILE_END){; a. f% [! s9 o |& b
- if(Update.end(true)){7 c7 p9 f5 y' S7 ~: ?
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 O# p+ w9 t. K" a - } else {. |9 n; c2 ^9 r- Q7 h- D
- Update.printError(Serial);! Y& {, ?7 @/ p0 m& t; b2 V" |
- }
# }" q( E9 Q8 L1 _ j% f7 G - Serial.setDebugOutput(false);) o2 Z4 q) M/ l8 S l% g9 _
- }
# D& | |1 ~9 ]% P - yield();
- v* ~6 H) c; q( S! Z# \ - });' O0 ?( Z; p6 o( |- f" Z" W
- . p. |, F0 E9 \
- digitalWrite(2,0);. n" L% V: C# l: E. q* I; H
- mainAction();; d4 p4 @/ U' P( p# b8 j
- if (digitalRead(0)){; ?7 n7 U9 q/ u7 x8 ~5 e N3 h
- ESP.deepSleep(0);
% M' J \' m6 \/ _! k - } else {
( w4 ?: `( X4 X5 [% c4 B }) H- s - server.begin();
' p5 E j5 E, ^, b1 U4 ?$ g - }
. c" e3 _, p4 |6 O$ | - }
1 u9 B4 X# O/ O+ Z0 z+ z - void loop() {( t. k$ ^ X) M$ V
- server.handleClient();
Q* {/ Q- S; d C) N+ F2 ` - delay(1);
; K: |& _2 J% W) E" d - }: Q7 C9 @3 I' k) C
- String doGet(String url){
( h# B# V* O9 j3 ?1 u' M - if ((WiFiMulti.run() == WL_CONNECTED)) {
! o1 m2 \9 Y4 K( Z* ]6 E1 y/ S: J - HTTPClient http;
# F& q1 Z3 |- l( f! I5 K) a* H. a5 F - Serial.println("[HTTP] begin...");6 i* G S2 i' I
- if (url.startsWith("https")) {/ U; ]9 {2 _" J: \2 K' D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% s! }" C4 ~ a+ T; h, q - } else {
6 Y9 D3 N4 h5 a - http.begin(url);/ U" k; `0 ?, u- j Z
- }# q' ]: o; a9 I* v
- Serial.println("[HTTP] GET...");
3 s8 f% h# W; ` - int httpCode = http.GET();# l* e& y4 x) J) \/ p
- if (httpCode > 0) {! t- c% H4 L/ K: f" k( u
- Serial.printf("[HTTP] code: %d\n", httpCode);: b7 b4 ~. [7 C4 y0 R
- if (httpCode == HTTP_CODE_OK) {' ^% h, `2 w8 b) C, g: E" g4 c
- String payload = http.getString();
, R8 Y/ A7 k$ _6 ~) L - Serial.println(payload);# ~% M3 {% U; }* E$ B
- Serial.print("\r\n");
- g8 O. T8 V7 b& L, d4 Q - return payload;( Y! A$ T6 ^- D4 d* W5 [
- }
) Z# }8 S7 m. N! @ - } else {9 H# k. r# l0 c- M$ `; h* z
- Serial.printf("[HTTP] GET... failed, error: %s\n",
5 v3 M- W; M$ P1 o* d+ \ - http.errorToString(httpCode).c_str());
2 s, X# G F1 f( _7 Z4 @ - } X" ~8 @2 C0 j C4 |3 {3 E
- http.end();% q3 j; |' ^- l1 Q5 J6 Y0 ]. V
- return "";4 K ^+ e5 D% i Y% g$ B
- }
1 [/ _5 [# k. q9 K/ |( R - }9 u7 R4 Q* k r1 _3 U, D4 o5 s. C
- void mainAction() {
6 e# q2 T" r4 \( Y% y" g+ ^ - // 发送请求8 P) ^, ~" o- d5 S
- doGet("http://google.cn");
/ @! e$ }8 X! g/ p- F7 { - }+ y1 m9 B! f! }* ]
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