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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)$ [- p v3 w- V8 T0 [) a M
- #include <ESP8266HTTPClient.h>
) i! J) e) t$ s/ u E - #include <ESP8266WiFi.h>
: E F I0 E" c( Z' f' p - #include <ESP8266WiFiMulti.h>
7 r2 z [2 @+ B0 T1 k @ - #include <ESP8266WebServer.h>: @* y* d; h Q& i$ N5 Y
- #include <arduino.h>
& A8 P9 p. B5 u& _$ r5 K - ESP8266WiFiMulti WiFiMulti;2 A% x# K- N. V) d. l5 ]
- ESP8266WebServer server(80);
5 o$ h C! F, v, ~8 z2 T1 n' m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 k: ?' Q+ P- M- `7 c' _ - ADC_MODE(ADC_VCC);
: i/ k5 D" q7 e" g9 ?* k - void setup() {
% r" I3 c8 `% e3 `" x0 Q; D - Serial.begin(115200);
$ l1 P: ~0 Z% X - Serial.print("\r\n\n");) U& m/ {0 h- @- N( l! c. B
- pinMode(2,OUTPUT);/ E" n; Z. f: F" e- P
- // WIFI6 q/ [/ P5 Q% `
- WiFi.mode(WIFI_STA); J4 k2 H$ Z+ Q) R& H1 a; Q
- WiFi.hostname("Sparkle");
+ {) x. ]# C" [, w; g5 S - WiFiMulti.addAP("wifi ssid", "wifi password");$ P* ]0 s9 T _6 S" n, O3 |
- int tryNum = 15;
9 B7 @. M0 c! R+ H( O% o2 B - Serial.print("Connect WiFi");: n' I! y3 R/ |1 s4 j
- while (WiFiMulti.run() != WL_CONNECTED) {
/ k! N4 p" Z$ j( c/ A5 d% Q) o - digitalWrite(2,0);/ t$ L: z" i2 i7 m; Q- R7 @9 Z& R
- delay(200);
8 m: D% H8 A1 G7 ] - digitalWrite(2,1);9 |0 f" n, \- \; {+ |1 b) O5 ^6 L
- delay(300);( z% G$ ?% \( B7 [7 _1 q
- Serial.print(".");
9 k1 N5 P# h6 F9 g% W - tryNum--;
4 l; P6 V I3 |; u - if (tryNum == 0) {5 Z# v" p0 f+ J# p
- // 1min# h7 m5 e/ b4 i/ f# o
- // ESP.deepSleep(60e6);
$ q% Q2 @; g% o! |: b- [+ y - ESP.deepSleep(0);
4 J5 Y4 q: i( h- W; F' `2 l3 e1 ? - }' Z" s# A z& Z$ f; Y8 M; j3 J2 {
- }
% h# t2 j- {. V2 G+ ~" T8 } - Serial.print("\r\n");
8 T& M5 R4 s+ e( i) L& w( c7 @ - digitalWrite(2,1);/ x, N, X# I; q4 Y! U9 A
- Serial.print("IP address : ");
" L1 q( n' ?, R' d - Serial.println(WiFi.localIP());
, G0 ]0 ^3 @3 ^ @- O! z9 P9 e - server.on("/", HTTP_GET, [](){ L' I' B: k; ^
- server.sendHeader("Connection", "close");
5 d$ n( C( b& u3 i' y7 | - server.send(200, "text/html", serverIndex);# ? Z; i: x/ x3 y2 R" w
- });- V% F9 ?, i, ^3 B4 b; o3 n
- server.on("/update", HTTP_POST, [](){
! r; p$ ~$ A; h! s3 a9 N, e! Z. i - server.sendHeader("Connection", "close");
' L! O8 e0 N. F" C6 _8 m - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! B5 P. Y. B6 v0 L3 M' _& B- z - ESP.restart();
# H1 b: Q1 y0 |5 P+ W1 a; B9 \ - },[](){; Z) v$ ?- X" z% i- R% t/ F* S
- HTTPUpload& upload = server.upload();; i) K3 U1 Z' {) D8 c$ p$ C; E
- if(upload.status == UPLOAD_FILE_START){
& s7 T; O5 l. G6 Z4 k% J - Serial.setDebugOutput(true);6 Y: k5 c; ~ S" X1 g* J% j
- Serial.printf("Update: %s\n", upload.filename.c_str());
. A0 {7 y, i- b/ s. n2 u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 I" Y& H6 R1 g/ y' ^+ r7 {
- if(!Update.begin(maxSketchSpace)){
# \# z _6 l% Q& e% m1 R - Update.printError(Serial);
6 F% P& x+ B/ H! f# z( L - }8 P7 M9 v) E/ u- I* ~
- } else if(upload.status == UPLOAD_FILE_WRITE){
, @9 o0 j& U9 Q' W - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 g" C% H1 `, L% z8 h" R - Update.printError(Serial);
- w8 ]$ ]/ s+ a) V) g$ s1 \ - }
: D) c' p% }$ D0 z - } else if(upload.status == UPLOAD_FILE_END){+ S: e9 t7 s3 R/ c+ }0 n1 G
- if(Update.end(true)){ k B& j& z, I' A; C4 ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# c: n' i9 v, D
- } else {
% A0 c6 I, F8 {" H - Update.printError(Serial);
( \3 S( ~0 D- S: L - }2 i: k6 D% d: i7 a+ \% K2 ]
- Serial.setDebugOutput(false);
2 ^) s+ l; ^! U6 s: |; g - }
$ T2 Q+ k5 J. _/ E0 b - yield();% U- \( d9 Z4 p9 b" ]7 z6 N
- });
7 K* {7 i: R; n9 O1 N% x) U4 ^ -
: N6 \2 L2 o( u - digitalWrite(2,0);
) F7 u' i$ q- ^& u7 C: s - mainAction();
; }3 c$ N. C. W" v% {. o* x - if (digitalRead(0)){: Y2 ^( d; ?8 P& Q5 }; r) R5 S/ \# a
- ESP.deepSleep(0);1 e: F& i( a8 |1 O5 Z& Z9 s% r
- } else {
7 A/ F! P/ O! L7 \1 I1 r - server.begin();
: V. q9 Z [, i' I( b! F3 m - }& n1 D9 A" L, z$ }+ z" Y5 ~
- }1 d2 _" `- X: }, F
- void loop() {
9 G. |9 A. P* X h5 I! _1 t, y& K - server.handleClient();& w! E( Z l. K* U
- delay(1);
' p* ~$ } ~0 q% {2 i, ^ - }9 Z# s3 f+ r8 d0 b Y
- String doGet(String url){
) C1 V S- V' [7 C: ]# Q. m A2 R - if ((WiFiMulti.run() == WL_CONNECTED)) {- o2 E: c+ B E d
- HTTPClient http;
2 M' I) F3 X1 [2 s3 o - Serial.println("[HTTP] begin...");
) x! e2 ]( W1 A# m# i - if (url.startsWith("https")) {- n/ s- E' \8 v4 k0 v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 b! r k8 D8 a& \1 F - } else {
- Z5 c3 {" q, P; k b - http.begin(url);
V& K! s& [+ p/ K# h) s' K# h - }
( O' [0 d; H1 R" x" [ S - Serial.println("[HTTP] GET...");9 _5 X B' Z: }" n& f( X
- int httpCode = http.GET(); Q6 V: Z# W" p5 h; r1 @- `
- if (httpCode > 0) {
3 e$ _' i- K, X8 ]% F - Serial.printf("[HTTP] code: %d\n", httpCode);
& K$ P5 i7 r3 X |. D8 { V - if (httpCode == HTTP_CODE_OK) {
5 p/ q4 u- s+ o+ K8 T& _. _) Z* L - String payload = http.getString();
9 v( N9 A7 C/ S8 F) J9 C - Serial.println(payload);
8 W4 v+ e$ c3 F% L9 g - Serial.print("\r\n");
0 p9 \- M! I' N1 _: f - return payload;
! g) W; m1 r( P! L - }2 m% Y9 B7 c# ^! p* F# q; V
- } else {) D- J7 E2 m' Y1 H0 o. [
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ ?/ f% a" I! s$ `2 ]7 V
- http.errorToString(httpCode).c_str());: u: h; e Y. l K/ D! a
- }5 k( U5 m9 C i! B
- http.end();: ?' }! Z; m6 B$ G; a
- return "";5 m5 o% d8 k6 i
- }9 E& ~6 I$ T$ e8 M: W; N8 t
- }
; e7 Z, |( e1 A+ [1 x+ B - void mainAction() {+ f2 v6 h' o1 q9 e4 U8 x9 b; R8 a' O
- // 发送请求
) S' N- I {: \" P- B% r( L! S - doGet("http://google.cn");
% g' n/ p! p {$ t4 P - }# v- ~9 I/ o ] J/ ^) P G' J
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