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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)
- D: l: X' j" K- #include <ESP8266HTTPClient.h>3 P' @$ s5 u7 K6 `& H
- #include <ESP8266WiFi.h>5 u, ]: a$ e) V( k/ \" }" C( j5 n# O
- #include <ESP8266WiFiMulti.h>7 b$ m! v0 e; [+ h! u3 v+ o6 @1 l& S
- #include <ESP8266WebServer.h>2 I1 V% K% z* P( P+ }( @5 d( F# {
- #include <arduino.h>
3 H! o `9 q3 g% J$ n2 ]+ z - ESP8266WiFiMulti WiFiMulti;* }8 K" A7 L* X& J$ }
- ESP8266WebServer server(80);/ x) o* x( t8 v% X# L/ z/ z8 F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 n9 o7 n4 J1 L! S
- ADC_MODE(ADC_VCC);$ S9 y3 d& Q8 x% M0 n% k
- void setup() {
6 j: l, h- z" o: V - Serial.begin(115200);1 `+ Z7 L5 D0 Q. [" e2 R8 r
- Serial.print("\r\n\n");7 @% z! O& j& k* ~2 u$ a }6 j
- pinMode(2,OUTPUT);5 y- r0 C0 N, P7 R% u
- // WIFI" C, t, {7 u' a) y6 K0 z; N0 M5 l
- WiFi.mode(WIFI_STA);
L* x, \/ x: B5 z1 b# Y# x. K( T/ ~ - WiFi.hostname("Sparkle");
* w: \, a& h- c3 |( X" ?% L3 Z - WiFiMulti.addAP("wifi ssid", "wifi password");5 l k4 U' G( r0 @) G; v: h. c/ z
- int tryNum = 15;" b+ W& V* {; [: A5 C$ h
- Serial.print("Connect WiFi");
2 i, x* g/ w8 m6 A - while (WiFiMulti.run() != WL_CONNECTED) {
; S9 y' g. i V1 ]" K - digitalWrite(2,0);: a2 _7 r7 _$ k$ ~; V' R$ I
- delay(200);
- l* i9 `& v$ y% p5 c - digitalWrite(2,1);5 r" R' A' {0 b' m' K
- delay(300);/ F _- n4 S, b9 c- j% p3 ^# n
- Serial.print(".");
/ E# |9 g! l$ d4 u% z - tryNum--;
% i- e) K( |" c! V* D( v - if (tryNum == 0) {
4 f+ X' J% u' s" b( i% n7 D+ C - // 1min
0 v+ B3 C' |; W& D1 v- [9 D - // ESP.deepSleep(60e6);
. ?6 B5 w! v% n2 ] - ESP.deepSleep(0);
" y2 f& {; V( R+ s. X. @ - }$ r n; K% {- m) |, H2 N
- }
: N* M0 C$ E: ]5 m5 ] - Serial.print("\r\n");
( {* X U, ?1 h+ ]' G h/ R - digitalWrite(2,1);8 Q6 I. \ f( F' T! b l% p
- Serial.print("IP address : ");! o9 M8 H3 {* b* Z% W# c* F2 ]
- Serial.println(WiFi.localIP());
: D$ t/ d. [+ e) t5 o/ p0 e y- ? - server.on("/", HTTP_GET, [](){
/ x) ?. Q0 e8 Y- J9 K2 d - server.sendHeader("Connection", "close");
6 ^) e4 n, [8 _3 T0 a& N5 q8 @" W: V6 y - server.send(200, "text/html", serverIndex);
5 Y6 }( ?! x4 j; ~! H% A* Y0 S - });
, G" B4 Q7 B# _) t) o- c9 P" w - server.on("/update", HTTP_POST, [](){
* |7 Y( H! _7 v - server.sendHeader("Connection", "close");
' T" C$ B9 x2 N7 O* } - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% T$ U' w& H* C
- ESP.restart();# L8 \* K7 y5 S: P m
- },[](){! g, O/ i- N( U' p% w- v
- HTTPUpload& upload = server.upload();9 P% ?; ~5 J# D9 ~. e k
- if(upload.status == UPLOAD_FILE_START){
6 p3 ?' v4 ^2 {5 h3 ] - Serial.setDebugOutput(true);
; U( Z% T% E, y+ D - Serial.printf("Update: %s\n", upload.filename.c_str());
* S* i) S3 A% s, U. v - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 L! i1 l) o$ o$ r: m% [1 g& H - if(!Update.begin(maxSketchSpace)){
( p% U' n- a4 F8 w; { - Update.printError(Serial);
, X: C- F( r/ K: W T( L2 o5 l1 r J - }' N+ ~" U; q* _: {
- } else if(upload.status == UPLOAD_FILE_WRITE){
, k$ t7 R0 t; m1 P1 ]! }/ U - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 A9 B4 W' g4 g1 _
- Update.printError(Serial);" h- P% r- O' y
- }
R4 ^8 {0 H5 k0 q* m: @" i. A - } else if(upload.status == UPLOAD_FILE_END){. J/ J' o& g2 t! f% i, I7 I1 M
- if(Update.end(true)){
5 U$ A0 b6 Z @) U% a# [8 C - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- w7 x; F3 A6 r6 k' n - } else {
3 y0 c& K7 H+ m - Update.printError(Serial);' U J4 o0 L, F, j$ x& z* B! `
- }/ e, C1 z; p1 S
- Serial.setDebugOutput(false);) `4 y3 Y: h+ H& o
- }0 M: p) ?! j* q+ p
- yield();
8 b- b, m" z& Z0 @ - });
8 E3 W$ ^6 L- w: l9 k; I, ^ - 9 o* H. {, ^( j3 S7 k
- digitalWrite(2,0);! ^; H7 i9 X" K' ]# D* Y1 r
- mainAction();
8 U8 R1 }/ `$ W - if (digitalRead(0)){
' c5 Q3 }2 b+ m - ESP.deepSleep(0);
0 l4 X5 c) {" x! t - } else {% i, I' s- A' |: R: l, i' N
- server.begin();
, \) Z! _* M2 o# ^# Z1 } - }
' F( d# }( k. `/ P9 Z, h - }
. J* R: i/ N" L( x; a% o4 @ - void loop() {
7 h2 Q D" [) H4 F: q - server.handleClient();" M0 N5 u9 h" {$ L5 _* R
- delay(1);6 {; z- v* u3 _' d# U
- }7 E; t( Y4 Z* f9 E
- String doGet(String url){. ]' y. I1 r9 {$ r$ ]7 O B4 J! `
- if ((WiFiMulti.run() == WL_CONNECTED)) {( ~5 T0 _1 U2 e$ i- @
- HTTPClient http;; v6 @5 p9 _5 D7 M
- Serial.println("[HTTP] begin..."); o5 p. e V$ d4 d# Q
- if (url.startsWith("https")) {
- _2 V& l+ F+ V$ J) h, M( u' U0 _ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' ~$ W1 n- Y2 }: N8 E, o' l8 m - } else {
1 \6 ]1 W; m) g% r& K7 ^' k - http.begin(url);
* V; n0 l( [) E& S& H6 ? - }
3 ^' n( U# G' ^) E% s' z3 v! A* d - Serial.println("[HTTP] GET...");+ ]! Y( L( O: S9 k2 I, l" J
- int httpCode = http.GET();, ]% V3 y* r$ c% J4 d* `6 i& u$ H
- if (httpCode > 0) {
^3 Y& i" G& T; y9 t - Serial.printf("[HTTP] code: %d\n", httpCode);' U4 e, A+ `' p
- if (httpCode == HTTP_CODE_OK) {
2 O# x0 ?, p- Q - String payload = http.getString();
: y( k( E; d0 O - Serial.println(payload);2 e+ R3 W# Q: A& U) s* E8 |. d
- Serial.print("\r\n");
7 }8 D3 u; B2 A0 W5 m - return payload;( V% R' q! ]0 T# U7 J
- }
8 Y3 @+ d: z3 Y/ _) \ - } else {, _6 i9 c4 g$ e) k& ]# ^5 A. S
- Serial.printf("[HTTP] GET... failed, error: %s\n",% O7 ~" U9 O, K$ d- h& z4 Y
- http.errorToString(httpCode).c_str());
; C& W% l3 x. { - }
; F; o; b5 B- I5 Q/ B - http.end();* q* E E( q5 R
- return "";+ B+ q& r* c; L9 H
- }+ y: y0 Q5 ~2 k5 z7 ]3 k3 q
- }
8 o# U" m% C% m$ w - void mainAction() {
3 J) V9 g7 {; f( J4 e - // 发送请求8 e# I, N6 `/ r7 e T* K% M5 t7 Q
- doGet("http://google.cn");. q* s. \- m9 [# ], X! P: k
- }7 s2 F) S5 f4 R' J8 \ T
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