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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)
9 d3 I! h" H2 B- d+ I- #include <ESP8266HTTPClient.h>8 K% H% v1 f V/ e. I
- #include <ESP8266WiFi.h>; F# a4 }. }( Y# z; z/ v& y
- #include <ESP8266WiFiMulti.h>6 ]: |0 y, @: c5 [
- #include <ESP8266WebServer.h>) r& Q, I" V8 t" J, a. Q( @5 z
- #include <arduino.h>
* Z1 l& T; Y; J; _ - ESP8266WiFiMulti WiFiMulti;
% n( g' R. ^, c3 r3 _) U# s9 t - ESP8266WebServer server(80);
/ b4 V c+ c) g$ J( m) `; f$ ]3 q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 S% s& U w) ^ - ADC_MODE(ADC_VCC);7 a6 q8 m: J4 P% e0 i
- void setup() {# Z8 N- y( b, S1 u/ s
- Serial.begin(115200);$ l, N k, K2 `; z$ z
- Serial.print("\r\n\n");. Y* e' a: j/ D3 d
- pinMode(2,OUTPUT);5 h) Z4 g/ m2 Y& a7 O- h: B
- // WIFI, O5 {0 a# c' N5 L: i4 J: A- x% w
- WiFi.mode(WIFI_STA);- b' P6 p! t2 Q7 p: z! R, q2 o
- WiFi.hostname("Sparkle");
7 r8 H! S% ^* d' A; P - WiFiMulti.addAP("wifi ssid", "wifi password");/ i3 ?3 }. q u+ r6 Z7 ]6 M
- int tryNum = 15;4 J/ E, L( `8 X! Y2 S) a
- Serial.print("Connect WiFi");
9 m' C- W/ ]2 t - while (WiFiMulti.run() != WL_CONNECTED) {
! Q( Y- `1 V) R - digitalWrite(2,0);
% k8 [- g3 W0 }, {4 O - delay(200);- d _" ^% i0 K
- digitalWrite(2,1);/ {5 V7 i0 M) {: t/ q7 ?0 r1 z, G
- delay(300);
W7 Z( Y- [6 a5 l0 `1 k+ G2 r! E - Serial.print(".");
+ i- P6 Y3 w- R0 _0 i, e9 H - tryNum--;
! E9 o* N! w1 U6 _/ b7 G* O - if (tryNum == 0) {
# H+ R5 d" j; j) ] - // 1min
) ^: g) F' J: T! s: C - // ESP.deepSleep(60e6);
' t8 M9 c0 P) ~/ e - ESP.deepSleep(0);
2 k" j- n% Y7 V! ] - }
( `; I# J( r) |& _ - }
; s5 ` f4 k. k w0 w4 W9 C) V/ T- C - Serial.print("\r\n");4 W: ?5 P3 Z( I$ @9 M0 L
- digitalWrite(2,1);
" s2 x$ M% ^9 t+ M2 j r - Serial.print("IP address : ");
5 D7 b8 J5 R5 @6 f! P" z - Serial.println(WiFi.localIP());4 X4 \$ s. H) k
- server.on("/", HTTP_GET, [](){
}' o1 ], f9 l9 l/ {2 c - server.sendHeader("Connection", "close");
( V9 x2 O% G- J n) W4 I3 M - server.send(200, "text/html", serverIndex);
: i$ \; f! I$ f+ V8 s4 G9 Q2 p3 \0 c8 Y - });( b3 m1 H5 N; n; p2 T8 D" z1 \
- server.on("/update", HTTP_POST, [](){
4 P4 v3 X7 B* m4 H8 v" o$ f, u - server.sendHeader("Connection", "close");
! p$ x+ } x% e$ n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 K v; L/ i* M, I - ESP.restart();
* K# s: Y' W1 S* Z. z/ O - },[](){
: Q5 C+ d! {- Q - HTTPUpload& upload = server.upload();* u) \' }8 r3 T0 p7 u/ l4 D
- if(upload.status == UPLOAD_FILE_START){" X# P0 z; o$ z5 o/ N5 Z
- Serial.setDebugOutput(true);
" ?& j% B% U1 Y/ T0 T( k( n" G/ D - Serial.printf("Update: %s\n", upload.filename.c_str());, ^6 E( G1 L( u. K1 k# Q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' o- w$ w/ v7 {
- if(!Update.begin(maxSketchSpace)){
, Y# H' ?( Z$ G - Update.printError(Serial);& ~" q" Y0 H! [2 `! `
- }
1 D) J" R8 k0 m! W1 n9 R - } else if(upload.status == UPLOAD_FILE_WRITE){
/ V1 Q, W" @ B0 g: \5 s - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% y n3 j0 B3 E0 |: D& \0 ^
- Update.printError(Serial);) z2 d; Q, G& I; {0 y
- }
1 D' m& k3 |! y1 L/ N2 _ - } else if(upload.status == UPLOAD_FILE_END){; B" T; b' @' |/ L6 m! W' I5 y( L
- if(Update.end(true)){
( h( V4 \. o1 S# o - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% ^$ t0 I& O% u4 l7 j7 { - } else {
& ` b& O! A3 A8 ~ K - Update.printError(Serial);
2 Q, w8 F9 j! O, v+ d) j - }: A/ \: d) J/ j) b8 E1 D( |' J
- Serial.setDebugOutput(false);1 U: Z3 o3 W4 M4 V
- }) X) b7 H% b0 l7 A8 H' S$ @
- yield();2 Q; E; R2 r: n. e. `) m
- });
S) S8 l* T) i1 `; q -
6 C' B5 ], M3 a6 m C1 ^* T1 a - digitalWrite(2,0);* l- e1 L$ G2 v6 h
- mainAction();
" L7 f% ]: A# c7 C, b( Z8 i+ g+ k, Y - if (digitalRead(0)){$ W( |6 _" R! {. M u8 A/ B
- ESP.deepSleep(0);3 _! ^. J/ X+ M2 [7 V9 E# U8 z, j0 \
- } else {
$ [% ]6 k) \6 L) _ - server.begin();' U" b" B& V8 S
- }/ f% A/ Z: Q; ]* c* N3 Y: Q
- }! }7 j9 a4 z/ `# Y
- void loop() {
. M e7 T ]# K - server.handleClient();2 g; c4 f3 S' `# C; G2 T$ [! S1 D
- delay(1);* ]% q5 A; A, R$ \9 C8 Q) B1 q% h
- }
( m* h& q c* i; r - String doGet(String url){
( o% g$ v& {8 G/ `& Q, c3 W6 w k6 ?' j - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 ~* z- I" v# j. `) ~2 I - HTTPClient http;
. j& s+ q. d. ~# V - Serial.println("[HTTP] begin...");5 \. G+ ~) I0 S, a! z" L5 k
- if (url.startsWith("https")) {
0 g' ^! ~/ c% U. m1 @ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 u8 O/ Y; `) c9 D
- } else {# \% |5 A7 }) e
- http.begin(url);
8 y. j [" e# i7 ?. S2 W9 u e - }# ?3 Y+ t; h' F3 U: d( f
- Serial.println("[HTTP] GET...");
& k" v# D% \' v( j7 a7 a B R% ] - int httpCode = http.GET();
1 U8 h1 [. j/ W5 K - if (httpCode > 0) {6 p, ^4 A6 b# Q+ e
- Serial.printf("[HTTP] code: %d\n", httpCode);+ l* o. F5 F) z6 H# _
- if (httpCode == HTTP_CODE_OK) {
9 u$ J- \) [' u7 K5 V) {8 g, g" H4 G - String payload = http.getString();
" E1 J6 Y# D1 k" b: M0 f8 V+ U" G - Serial.println(payload);
6 y5 _3 T2 `1 G3 P5 m) j7 o$ ]5 g# w - Serial.print("\r\n");
( r: Q, `' r! X - return payload;" K1 J( ?- B/ Z5 w3 n3 U$ p
- }
+ B+ y9 ?% O0 f* g# H6 Y8 m - } else {4 p8 E* t: n# d& _& R5 u& n# A
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 g; ` V( L) I8 Y& D* F - http.errorToString(httpCode).c_str());
5 Y4 X H) Z# Y4 C" F4 Z3 @! J c - }* |7 g2 i& O" Z
- http.end();4 e; n" P P" P L w
- return "";. @9 P% z; i' n8 C9 |- J7 t1 @
- }
% G/ U1 K! F D3 E9 M+ o- G - }: i0 p9 c, Y& I5 u) E' s/ Z" |
- void mainAction() {7 Q* Y3 u b- E# r% a9 u; q
- // 发送请求
8 a) k) x& M+ w( m, K0 r - doGet("http://google.cn");
8 x( m2 ^ L1 W- L; e/ s2 U - }' q; f, I& o4 P7 e8 ?& o) _0 ^- w
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