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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 A( g% K# s. ^- #include <ESP8266HTTPClient.h>3 M" O& G# |% F3 M4 y
- #include <ESP8266WiFi.h>
/ B4 T0 h }5 B9 m& E - #include <ESP8266WiFiMulti.h>: I* m" ~6 y. l G2 |8 j* p
- #include <ESP8266WebServer.h>. Z' [7 c d2 p( u, Q+ z4 r3 K
- #include <arduino.h>0 O4 u( ~! w5 y) C; W1 T$ V
- ESP8266WiFiMulti WiFiMulti;; Z8 H5 u2 v' U1 y; H# n8 C
- ESP8266WebServer server(80);
h, Z6 i+ ?" k; ^ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 C1 i7 h W4 r6 z! l* E
- ADC_MODE(ADC_VCC);+ p0 B8 X2 L i& s
- void setup() {4 c) S$ w+ K, g* a! X) Z
- Serial.begin(115200);/ ` W* M" z5 y4 O+ f( n, p* N
- Serial.print("\r\n\n");, ?9 R# v9 Q* B
- pinMode(2,OUTPUT);
" X: j: i* r' k! r& X - // WIFI0 a8 e, h+ f e# d6 U( X
- WiFi.mode(WIFI_STA);. t; B1 K$ D3 J, C6 e9 I4 x
- WiFi.hostname("Sparkle");/ L1 T+ g3 N' G3 _0 h, t
- WiFiMulti.addAP("wifi ssid", "wifi password");, Q6 i- Q. U! b* Q1 ]
- int tryNum = 15;. a6 L+ ^( n Y, m5 T5 r4 w
- Serial.print("Connect WiFi");
2 Y& o. G: d3 c; [ - while (WiFiMulti.run() != WL_CONNECTED) {
- f0 [0 |% z- r4 s* n0 W0 h; O$ V( C - digitalWrite(2,0);
8 p0 b& c! g6 m3 K+ } - delay(200);
9 N' \! @0 F5 z9 j2 Z" i - digitalWrite(2,1);
: h5 \. } g5 X# X. R - delay(300);
/ F& U2 I6 Q+ d0 C - Serial.print(".");
; W" Y7 M6 q9 v5 @ - tryNum--;
% G; M& g' E' W2 Q" w( s2 c$ j - if (tryNum == 0) {8 W( ^6 ^* K! G9 ?
- // 1min
" Q% i1 N i1 z5 W - // ESP.deepSleep(60e6);
8 i* @" r# C* N) X - ESP.deepSleep(0);
4 B) a) H4 l- q$ Z2 o3 T+ D m( v M( ` - }0 p' P7 z) M- G# ^. r) \
- }+ Q4 |) I0 Z) m" d& H x; B
- Serial.print("\r\n");
8 O: y2 a. \7 R+ \0 w: ^4 _ - digitalWrite(2,1);
' X1 D+ e3 q3 { - Serial.print("IP address : ");$ u3 J# K6 w& R* U8 m& D
- Serial.println(WiFi.localIP());
$ r M1 v$ ^4 b1 G8 j - server.on("/", HTTP_GET, [](){( n2 [, [& g* G7 j
- server.sendHeader("Connection", "close");, P* G O+ w- I$ j
- server.send(200, "text/html", serverIndex);
% L3 S$ a$ L3 B5 @: T. r - });7 g( \+ d/ @) N c5 y
- server.on("/update", HTTP_POST, [](){
2 y/ Z. O& w$ l8 n - server.sendHeader("Connection", "close");
* w5 X& r2 I/ e- J1 ] - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% V S4 \6 }6 R% ?; C7 U+ z+ ? - ESP.restart();; i( U8 m ]/ q
- },[](){. w ]' E' D2 q0 R6 g( M% G" m
- HTTPUpload& upload = server.upload();
h7 D& X P+ D+ \ - if(upload.status == UPLOAD_FILE_START){
2 M6 @, a& K3 \, R - Serial.setDebugOutput(true);( }2 P! K% ]; H8 `
- Serial.printf("Update: %s\n", upload.filename.c_str());
' i; {! X+ z* C% M% [8 K - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* _ w4 X9 }# j* A4 Q
- if(!Update.begin(maxSketchSpace)){
: E: n( ` W" E6 W) @. K1 F1 S - Update.printError(Serial);
3 n( a) k6 ^) v; u6 x# J - }2 K# `; s/ I( K2 G
- } else if(upload.status == UPLOAD_FILE_WRITE){! {. M7 M3 }, o* j" `/ y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& `% J4 U E0 [% H& r. m5 l% Q
- Update.printError(Serial);
5 k+ L$ k5 }4 j - }/ u: C+ H" f' q z; m1 \) V# J
- } else if(upload.status == UPLOAD_FILE_END){' C+ m7 w8 Z s! ~& R: L( U2 z6 [6 V" S
- if(Update.end(true)){ p6 X4 @) ^% H" T% p. V
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ W9 C& ?* J0 c
- } else {
, d# k0 r4 X5 Q" E. r - Update.printError(Serial);
! i1 P. P2 E$ S% x. B% d" d - }
0 }$ [3 t7 q X; [( p$ y - Serial.setDebugOutput(false);
( r' @& Q) y& r( s' s( z - }
9 S+ b; a8 v. H& M( b - yield();
p+ |1 D! @: {) Y; ^$ Z - });* e3 H$ |5 r1 B3 C; }
-
# O, H* j8 K9 y3 f4 Q$ r& Q! R - digitalWrite(2,0);( J! w5 y" x! g( Z9 d; m0 ?6 ^4 P
- mainAction();; ~1 f! R; l) @+ k" u/ p! Y" C
- if (digitalRead(0)){/ r, T! h) e) @ W- v/ ]
- ESP.deepSleep(0);
1 r) S7 }6 Z2 M' T0 x! n. K - } else {2 a+ m8 _$ f- R8 i
- server.begin();
! r8 x+ H g x# _. Z3 T( n - }" a" W, Y" c& \" T5 O
- } H2 ~0 q4 N8 g6 O" D
- void loop() {
& y2 ?- q; t1 ~& z: Z8 X$ U5 f; h - server.handleClient();% |4 A7 ]: B; a
- delay(1);5 e8 l1 g0 h" T
- }; @6 ?# W# x) S" ?% r/ X
- String doGet(String url){
& p0 k2 _; T' s$ _ - if ((WiFiMulti.run() == WL_CONNECTED)) {
, g& S# I# ?1 s% b& p! {- j( o& f8 J - HTTPClient http;2 d$ e& r+ l& U' M& T0 n
- Serial.println("[HTTP] begin...");& [4 ?/ A( {7 D/ _
- if (url.startsWith("https")) {- W2 x- E1 |; ]; a9 S
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- o; S6 k* g3 n x$ H e* ]% a - } else {, F2 J3 @, T* Z9 F
- http.begin(url);
( N( r5 A" t. M4 u9 v' U% Z+ N* o - }
& \; w, R+ n' @& j; [ - Serial.println("[HTTP] GET...");
! ~4 t! E& T2 N. l% x Q5 \ - int httpCode = http.GET();
7 ]: {' y* X6 Q5 }6 o3 W' A - if (httpCode > 0) {
! \6 a# z/ Z( G% ~( ^1 v4 h - Serial.printf("[HTTP] code: %d\n", httpCode);4 _9 {4 z! i% U! i! J2 d- e0 d
- if (httpCode == HTTP_CODE_OK) {" H( p# N/ j' V/ n
- String payload = http.getString();; z3 o' l y. k
- Serial.println(payload);- q" l6 s$ S7 |2 ? l. @
- Serial.print("\r\n");2 e& H4 f( I y4 U- J p7 F' H# `+ v2 s- ~
- return payload; J& ~0 r6 Y1 L
- }
( `" O5 x4 `& w( P4 K% e - } else {5 l; Y' T5 s& M% {/ x' d
- Serial.printf("[HTTP] GET... failed, error: %s\n",
& `) x! @* L# ~# f' I* x3 q1 ^' Q - http.errorToString(httpCode).c_str());% u8 O6 r9 J- {5 y3 z
- }
& m; @1 Y7 b8 E7 c' v5 P - http.end();5 g4 M; s ^; B* c
- return "";
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- } b- j1 W/ L W2 ~6 R
- void mainAction() {* t9 q, q6 T4 j
- // 发送请求4 o- R$ s# I/ g, M
- doGet("http://google.cn");
* n2 u- s$ y: P$ ]) Z0 t - }; D! c1 z6 @8 B) Z/ |0 M
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