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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) A- x% i5 ]* e, g6 p( c
- #include <ESP8266HTTPClient.h>+ d4 V5 E: w3 f# x5 i
- #include <ESP8266WiFi.h>
' ^' N/ W6 X0 \# e2 | - #include <ESP8266WiFiMulti.h>
+ Q* E+ x; y+ I) d - #include <ESP8266WebServer.h>' z+ N8 ^$ h: u1 l7 V2 R) `; g A: M. d
- #include <arduino.h>5 O# V! M# n( X3 P
- ESP8266WiFiMulti WiFiMulti;- d1 x& {4 \7 ?7 e" ^0 h
- ESP8266WebServer server(80);' x2 G* D3 X- {0 a2 m0 Z7 M6 T8 D
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 }7 R$ M6 ^8 Y0 o
- ADC_MODE(ADC_VCC);
# z, o' {- K- C+ G - void setup() {/ T$ m( M. [& k- `$ ^
- Serial.begin(115200);7 i$ {. l6 |5 B8 h! i0 x+ p
- Serial.print("\r\n\n");
; ~3 Y4 I+ |1 ~. I- C! L% P - pinMode(2,OUTPUT);1 h! d. W9 E% X0 s& \
- // WIFI4 Z; n) }* N6 f0 T
- WiFi.mode(WIFI_STA);9 I" j6 X/ w7 J' `5 z, b
- WiFi.hostname("Sparkle");/ M- @6 B4 m' I" U# q4 l
- WiFiMulti.addAP("wifi ssid", "wifi password");2 W" M; Q1 s, c; f
- int tryNum = 15;2 p% l4 p' F1 N8 Q6 Q& i1 W7 t/ ?
- Serial.print("Connect WiFi");
- L- c4 ?6 S3 s. P! m$ d - while (WiFiMulti.run() != WL_CONNECTED) {
3 X: G6 i& c. O; y( p. J/ {6 ] - digitalWrite(2,0);9 O! @4 j0 z) U( X8 a5 O
- delay(200);
$ E) c, e) K7 N6 Q - digitalWrite(2,1);7 K, u/ s8 ` C- p
- delay(300);7 U& a9 C# d) m* s
- Serial.print(".");
. M% x' M( m; E% j% X) G - tryNum--;; n s+ Q; F; O+ J4 @0 t- A! ?" s
- if (tryNum == 0) {& s* W) M0 U# f4 {
- // 1min6 K% Q! M* ?5 \1 q0 a2 [. L
- // ESP.deepSleep(60e6);% A5 w7 ?7 h) [
- ESP.deepSleep(0);" m4 k9 @5 W6 v9 u) ~9 s
- }# v* G$ d& Q) X
- } M, y+ G: o: B; G
- Serial.print("\r\n");+ x# X* F# b& ^4 S0 f+ ~
- digitalWrite(2,1);. m/ P& p0 Y* x* T) d6 `% N# x& ~
- Serial.print("IP address : ");# d5 R1 [& ^* j% U& _0 R$ H- ?/ ]
- Serial.println(WiFi.localIP()); B5 R; E- N& `5 s+ A
- server.on("/", HTTP_GET, [](){
4 k; A: \/ l, D. z2 P, e/ B - server.sendHeader("Connection", "close");% I& X* n( p6 J) K
- server.send(200, "text/html", serverIndex);
1 r3 U1 W3 z) Q( l9 L0 G, ?2 l - });
# L, L2 o: N5 o" L3 @8 X4 ` - server.on("/update", HTTP_POST, [](){2 |. d: w( d5 D7 o. U0 v/ h& E; F
- server.sendHeader("Connection", "close");1 p ]9 P# g1 F
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ y9 \3 y$ f2 r
- ESP.restart();
' ~1 _2 n% |0 M5 ?+ l* S7 ~. D - },[](){
7 e7 O) _1 J5 R3 f7 Z; d8 O( L2 \) v - HTTPUpload& upload = server.upload();
G# _) b/ ?* E3 B - if(upload.status == UPLOAD_FILE_START){
* w% B4 A/ `1 v4 o - Serial.setDebugOutput(true);
8 C/ `4 y8 e2 t2 b) ]: R! \# S - Serial.printf("Update: %s\n", upload.filename.c_str());; B( W7 Z$ b3 R& z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 A2 q# }: ~% y" l4 T/ Q5 |% n) e, Q
- if(!Update.begin(maxSketchSpace)){
, I1 f; @' U- L: x - Update.printError(Serial);
5 C4 j$ d+ {( U9 D) R# q% k - }
) I' c* @: V$ G% H& M8 p: V - } else if(upload.status == UPLOAD_FILE_WRITE){
/ {4 a+ T% N5 f, p- B8 B% m- \ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' B1 Y v7 U# _) M" C4 d - Update.printError(Serial);
9 n2 B7 K; U% G! e8 e7 { - }* a( Z+ v1 \ K
- } else if(upload.status == UPLOAD_FILE_END){
5 ^3 J. F7 F) B0 a - if(Update.end(true)){
P E3 n* v6 N3 W0 M' c; ], [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# r# u, A8 F: j1 C, [; H - } else {$ I7 |7 O! Y2 p0 x
- Update.printError(Serial);9 |* C* C$ \" |# @# J
- }
9 T$ \ k. b- V - Serial.setDebugOutput(false);
* N1 W1 V/ v! M8 S7 [: r* @1 B - }
: ^/ u# X3 s9 K9 j9 x) R - yield();) J0 D9 c! F ?0 S9 }0 r2 t
- });
; k7 F6 f5 @1 j& j h* F -
" u3 s: J; W' t( e% n) Y3 O7 R - digitalWrite(2,0);
- I: u2 j% N4 D3 b9 p3 a# D - mainAction();9 Y* U) S- A* S9 e* Y4 ]
- if (digitalRead(0)){/ i! I7 k, r" f6 |3 f: _0 X! ]) P
- ESP.deepSleep(0);
5 P$ w0 I d8 x# j - } else {
$ Q/ N1 E3 O& s/ U! k5 Z- h) s - server.begin();" t/ T0 b. C0 L
- }
1 v7 k1 W! p! O4 q$ b! n/ i; [ - }
0 l2 c" T, X$ }. k - void loop() {+ Q, n" M7 P1 o8 j: T$ `
- server.handleClient();
, L6 W F b" e$ _ - delay(1);
6 i: h9 Q( ]* u8 g/ Z - }' k+ I. a3 t, D3 u9 a
- String doGet(String url){$ M) f3 l! a3 w8 t0 M5 {, ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {
0 E3 `* T$ e2 X) G( V3 L; c% m) M+ p8 c - HTTPClient http;
+ o* d- ^" @& `. M' a0 e - Serial.println("[HTTP] begin...");; n* {6 H& z2 F6 _6 s# \
- if (url.startsWith("https")) {
& W" s' z7 h' @; W. G - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 [% E1 S" G* K. ?/ B7 z) F
- } else {6 ^/ u! n* ]! W- Y5 e
- http.begin(url);
4 V) E) y; x6 e( R6 D. k! i# N - }! s2 Q3 w& U7 t4 d% A# s; o
- Serial.println("[HTTP] GET...");
; \. h) t1 s* d; y9 H - int httpCode = http.GET();2 Q- n3 a& w4 O: Y q d
- if (httpCode > 0) {& a( t2 | r/ D! ^
- Serial.printf("[HTTP] code: %d\n", httpCode);5 N( Y$ x; v$ T3 [" ]: |- K
- if (httpCode == HTTP_CODE_OK) {7 u* X& q+ h0 r
- String payload = http.getString();' {5 _' L, v4 N* u$ ^8 }- \+ r, x
- Serial.println(payload);
4 z- k! j7 @* K B7 `& X! }: E - Serial.print("\r\n");/ E$ W, r% c7 Q0 R# l
- return payload;. g& i9 x' y3 J; Y) {
- }) P3 T. D, g& u4 N
- } else {
# x9 K9 \1 I9 B& ~ - Serial.printf("[HTTP] GET... failed, error: %s\n",
S6 w6 O1 z/ } - http.errorToString(httpCode).c_str());
( h; }- n1 } M - }& c. p8 u4 t5 X8 u0 c: T
- http.end();
% [' x* F) s+ Z7 `1 j# w - return "";
; x' e% j* S4 ]: H- p: } - }6 V. M# m [, X$ s$ `. k4 X) d
- }& @; B5 X4 p6 g* k$ b1 `
- void mainAction() { `& p) }& F1 u9 u4 E4 n( w
- // 发送请求* x+ i0 I) D* T6 J. Q9 x9 N
- doGet("http://google.cn");
0 ^+ a4 W. X1 n' r2 O - }& C7 A7 q9 ^, }4 G" i: {. j! x2 ~
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