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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)
6 g: X& h/ Q/ h( B+ w- #include <ESP8266HTTPClient.h>
3 g" W' R- ~* } - #include <ESP8266WiFi.h>3 R9 B0 L" `, n8 e
- #include <ESP8266WiFiMulti.h>8 T& s& q2 s, o. z
- #include <ESP8266WebServer.h>
/ G4 _( ]5 i+ k6 \ J - #include <arduino.h>
9 A" A. r6 P6 V$ @ - ESP8266WiFiMulti WiFiMulti;
& }, `8 p2 U5 ]/ Q - ESP8266WebServer server(80);
" M' c+ @8 E" y! G, v* j - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& [5 |8 p5 c; f5 D, U f! x& S) E - ADC_MODE(ADC_VCC);
6 n5 e- D; R3 g2 J6 u, I5 f. {$ Z - void setup() {0 ?3 X+ ?& [( v" c- ~0 p8 A
- Serial.begin(115200);
2 o" \ ?: w) y- s: F% w, Q - Serial.print("\r\n\n");
1 T% z6 i0 E! [' N3 A$ ?% K3 O- f! o - pinMode(2,OUTPUT);
) {( O" Z# J/ M2 v: D - // WIFI4 [4 d8 w/ o+ l
- WiFi.mode(WIFI_STA);& E' v6 ?' [& d/ A0 T6 F, @1 ~& m7 V
- WiFi.hostname("Sparkle"); Y1 {% C1 V! |4 z- [5 k' [
- WiFiMulti.addAP("wifi ssid", "wifi password");( l+ y; Y: ]5 J5 |
- int tryNum = 15;! _2 y5 C( g( W1 ~1 d" f5 \) V0 |
- Serial.print("Connect WiFi");
6 {* {0 `4 W+ [+ x - while (WiFiMulti.run() != WL_CONNECTED) {* ]) \' ?" @ G! |5 B$ d
- digitalWrite(2,0);
7 K: _2 W( y' F8 x0 h - delay(200);5 W+ v# q$ P3 v) @$ c
- digitalWrite(2,1);
# f4 a0 \6 w5 z4 j - delay(300);( a" u. H5 U& G: c* {
- Serial.print(".");
) S0 v& F% p3 K$ P - tryNum--;+ e8 a" c% Q/ Q$ T7 C9 `) `
- if (tryNum == 0) {* x8 t5 b, d/ j& t* I
- // 1min3 s, H2 w8 F/ c1 d3 s8 Y- S+ z
- // ESP.deepSleep(60e6);, w6 ?7 N% S. [; u7 j5 Y) \
- ESP.deepSleep(0);
5 Y( y* |0 g; \# E3 E6 ~) D - }
% [* V0 I2 ~$ U, O- }' P- h0 h0 p) p - }3 f' K0 [/ } ^6 g V. `+ t
- Serial.print("\r\n");
2 Y& l0 T0 p" {: M2 l0 t9 j - digitalWrite(2,1);) k" b/ t& F. [7 i
- Serial.print("IP address : ");6 R) c" u& `8 O- b9 s
- Serial.println(WiFi.localIP());. ?3 }4 ^7 _5 s. h& \! {! U* n
- server.on("/", HTTP_GET, [](){5 t5 x6 s' H% ~/ o3 _9 m
- server.sendHeader("Connection", "close");6 Y# ` m+ |4 i" O" n% y! I7 v
- server.send(200, "text/html", serverIndex);1 A3 Z& @( u! B# `7 ^
- });
; g U8 u2 ~" ^& t7 ? O( l$ Z - server.on("/update", HTTP_POST, [](){
5 i9 o0 D) H2 k. M3 {, b - server.sendHeader("Connection", "close");
; r- A; I0 c6 O, Z4 V; m# ?1 ? - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 }6 d4 `5 N: Q# l9 k2 z" h3 j" _' P
- ESP.restart();6 j) Y$ \& y6 Z0 {
- },[](){1 X2 s3 S7 B$ l
- HTTPUpload& upload = server.upload();
I. | I( C& y- U - if(upload.status == UPLOAD_FILE_START){
& w9 d# d4 i M- C5 E - Serial.setDebugOutput(true);
: n3 ^5 C8 h/ W0 p. a: @ - Serial.printf("Update: %s\n", upload.filename.c_str());
) v" M5 R- o* M+ _% y9 Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ }9 o+ `( x( T8 z: Q
- if(!Update.begin(maxSketchSpace)){
5 H0 ~# v. K4 v, N9 Q - Update.printError(Serial);+ U( Y8 x, A/ ^. J4 A: S( n) K8 l
- }
3 Z4 p4 p# t" n" [. Y - } else if(upload.status == UPLOAD_FILE_WRITE){2 |' r; u& | X, _; k7 o/ i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" ]4 I* n0 b K0 o% `8 N+ _( V! [4 \
- Update.printError(Serial);' B7 i% P) Y) N& q4 {. q
- }5 X) M' e) s' u: d! r4 C* f. [
- } else if(upload.status == UPLOAD_FILE_END){9 D3 Z+ y/ h/ e4 L+ n0 b
- if(Update.end(true)){& R. H/ Q( u" C* N
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- x8 t0 ]" j- y/ S5 i. g; W2 T9 E: S1 U - } else {
5 o U7 ]2 {/ B/ @0 l8 a" i - Update.printError(Serial);# f( W$ O9 `/ J, X
- }' n) k6 X7 r w% X* V
- Serial.setDebugOutput(false);+ Q! [* | T* m5 C% J6 e/ }) b
- }
8 t( z% c$ [9 C5 {9 \; f$ b, ]* k' n - yield();; p% A ~1 }6 I/ k8 n- V/ E' P
- });
6 Q$ G8 S O1 T X - : \( l* @" V' _' ~
- digitalWrite(2,0);7 P( ^# i, B- O4 I H% g/ L
- mainAction();
# U. p5 ~% h) J4 | - if (digitalRead(0)){. Y8 C9 i; m! [: F) H
- ESP.deepSleep(0);) R5 b+ C3 T d* r* S9 `7 `
- } else {' ~: n5 D/ P8 l/ j+ |
- server.begin();! D V' b: ^- D/ u/ l) a* k' L
- }
6 @% Y. K3 c- K' d7 r5 P - }
$ {8 I8 V, @+ F: W9 | - void loop() {
7 H% D( \( l) F" T. f- u* T - server.handleClient();
+ `6 ]- K" F/ m& d - delay(1);8 _4 ^3 M# _" I! K1 ~
- }) |& M9 }# n; n4 J7 t5 W8 n
- String doGet(String url){
7 a* H* M" { \2 [# n; f7 _ - if ((WiFiMulti.run() == WL_CONNECTED)) {
" [2 |) V% z' X/ O' X; p7 H - HTTPClient http;! v$ d5 |8 N8 c' S3 q
- Serial.println("[HTTP] begin...");
1 d7 z; f. j2 { ?: \ - if (url.startsWith("https")) {
2 k6 T( v K# X4 z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 p4 ^8 o% G" L, n0 |0 z5 V j
- } else {
8 K. l: w- S" i1 f; d; | - http.begin(url);( u( @4 @: ~8 R
- }
( q0 ]- p$ M( _7 W# A9 p: s - Serial.println("[HTTP] GET...");6 E/ y* h+ U2 a# _) e& M
- int httpCode = http.GET();
4 A& H2 {* M- g1 G - if (httpCode > 0) {
; x( F9 s( i! D% [3 S2 } - Serial.printf("[HTTP] code: %d\n", httpCode);
/ j7 a, A3 K! p4 g - if (httpCode == HTTP_CODE_OK) {
6 h ]- c8 v8 q. V& i - String payload = http.getString();
( {7 _. C9 T* u6 H. p- n x3 g, V - Serial.println(payload);" a# H/ _6 E& U! I$ M
- Serial.print("\r\n");+ [8 Y: y: s* g+ L( s- L4 F+ D- O
- return payload;
5 ?9 O7 e* p9 Q2 J' O - }1 t" _/ d' d9 C
- } else {
: x8 P$ |% I) X7 o3 @" b$ g) N/ J - Serial.printf("[HTTP] GET... failed, error: %s\n",
. I; e6 i' E5 Z - http.errorToString(httpCode).c_str());; O, \+ i* \7 l
- }( u8 N/ G4 J8 _4 Z( L: f/ N3 c
- http.end();
/ v/ b& q6 z9 D: F; K8 Y3 r, J - return "";! v4 Y; v4 E3 ?; t' Z
- }
# B5 r& u+ u2 ?. V i - }
2 G0 h3 C% Q9 r0 |: g - void mainAction() {1 ?! \2 A( l& X: x+ V: o0 }
- // 发送请求
2 H0 A. W6 ~0 d0 d3 N - doGet("http://google.cn");
. e: M( j y: u3 {' z - }" J. N/ R+ D& \& Y( C0 G
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