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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)
7 i8 U/ H4 T1 B. a- #include <ESP8266HTTPClient.h>) v, _1 m) a) g! o
- #include <ESP8266WiFi.h>
9 M- T4 y, u1 Y0 B8 u) M9 \ - #include <ESP8266WiFiMulti.h>
+ e/ U B- ~- t - #include <ESP8266WebServer.h>4 B. X7 X. ~& i0 T- u0 \
- #include <arduino.h>& \9 q9 C; U5 N2 t
- ESP8266WiFiMulti WiFiMulti;6 j$ `' e+ J% U/ U, f
- ESP8266WebServer server(80);
( O/ o5 X. u% ] - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 t) [; j: i1 ]! I9 W
- ADC_MODE(ADC_VCC);& H, j- R( p- T2 n" U+ Y. u
- void setup() {9 D _& ^. P) H) F7 [; P
- Serial.begin(115200);
, }6 f, w7 A6 ^% [2 q - Serial.print("\r\n\n");
# }9 z/ o- Z& M7 t/ g- J - pinMode(2,OUTPUT);0 i/ }" |: I; ^: B
- // WIFI
0 e$ X2 c0 r+ h9 I6 { - WiFi.mode(WIFI_STA);
5 m/ n( z9 j1 }5 Q" p8 S- i) J - WiFi.hostname("Sparkle");+ R- g3 O) T, N9 G/ W" u0 l
- WiFiMulti.addAP("wifi ssid", "wifi password");5 A# {% O) e J
- int tryNum = 15;1 d: p% g+ U! |0 S7 C
- Serial.print("Connect WiFi");
) m" l* }) O; |: v" R - while (WiFiMulti.run() != WL_CONNECTED) {
3 J8 _( Y" W1 Q - digitalWrite(2,0);
! n. x( ^- H8 Z) b* e - delay(200);3 i6 w* {/ I' @% [2 R, U
- digitalWrite(2,1);
. r/ N* E! Z1 q! G, b - delay(300);# k0 j, V( [& y0 G9 c$ t1 ^* \
- Serial.print(".");. P% s: S* K8 T) U+ W& U
- tryNum--;
+ s2 `+ A- A0 a - if (tryNum == 0) {4 Z2 j' p8 L; Q2 }0 Z, u7 K
- // 1min
/ C6 x5 M6 x/ `8 Z" u0 i9 p - // ESP.deepSleep(60e6);3 C2 v( ` N& v" I3 h
- ESP.deepSleep(0);
1 d8 y3 G: T1 m3 ~1 K9 w, P - }: X/ _* X; h2 E- Y; D% H6 i% d
- }/ ~' N6 V' Q, x( y
- Serial.print("\r\n");% W$ A6 e) Z' W5 ^
- digitalWrite(2,1);
$ F, t5 C8 d' i. m9 E - Serial.print("IP address : ");
: A, K: q7 t& l8 q4 D a - Serial.println(WiFi.localIP());$ z, w( Z! G" t$ W) n
- server.on("/", HTTP_GET, [](){) g. y7 \9 @# E2 S4 I( {
- server.sendHeader("Connection", "close");
( H5 V- V0 ]- G# K( n/ U. z - server.send(200, "text/html", serverIndex);
s/ A+ S% G3 u* B% {" J - });0 u7 S+ o2 B |# V4 a Y. v
- server.on("/update", HTTP_POST, [](){/ B# G: c1 O4 X$ p8 ?7 W! K: F- b
- server.sendHeader("Connection", "close");
$ ^ g' |1 ^5 z3 h - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# y8 y+ T9 S& B' l# H# z - ESP.restart();9 e5 |& p5 e5 ]" n( O; s. x
- },[](){
7 G0 {. G- [7 X8 ]) D8 s4 v! H8 p - HTTPUpload& upload = server.upload();, V/ b# ?! |- j5 j( }3 r* D: X
- if(upload.status == UPLOAD_FILE_START){
7 Z, T+ }/ }' T - Serial.setDebugOutput(true);
4 w6 b. K' _+ o- G, t - Serial.printf("Update: %s\n", upload.filename.c_str());
' r/ s Y& d( B F; ~; J - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, S6 z0 ?' {3 h4 a4 i4 ] - if(!Update.begin(maxSketchSpace)){
$ h. q- z2 M- W3 L - Update.printError(Serial);1 _: b% t& L' j! F& M" l5 C
- } m p8 P: w9 K. x6 l! C1 d! l
- } else if(upload.status == UPLOAD_FILE_WRITE){& `4 J0 r& F0 w$ Y0 ~7 V- E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, R/ d. ?4 Q/ Y L+ D5 M+ E7 x: w) e
- Update.printError(Serial);
2 j% U' z% ?, c' I @$ x6 r* E - }% }" e$ Z, p( G, B( T# ^
- } else if(upload.status == UPLOAD_FILE_END){7 Y' I; }4 n: ~9 e0 q
- if(Update.end(true)){
/ s, r, |, Y8 r1 `' R - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 K3 }0 D1 K2 R! B3 y) B$ Z - } else {
5 L) h( A5 T8 I; M - Update.printError(Serial);- J% j( e4 s5 f$ ~
- }
& F5 T' W& l- x) Y& h - Serial.setDebugOutput(false);
) h# [! }7 w' y8 c9 J - }' u0 N! ]" `: q- w( D$ {6 C
- yield();
. U' @0 @- n( I. \ - });
" H8 m" F$ r3 R% ]" S -
, Y& b' o) V* i5 X$ y/ {* { - digitalWrite(2,0);( S& Y9 |, E/ q/ i. q: e
- mainAction();6 k$ W# G; s1 V) o
- if (digitalRead(0)){9 Y% u; i8 i8 h2 c
- ESP.deepSleep(0);
" A+ |+ o; L/ w- B1 _' ~( K - } else {6 k* K: [! R8 R2 U
- server.begin();
/ H- x/ N2 ~; d% S* K/ z9 M - }
! N' I0 X0 ]3 b9 s - }6 ?" F3 Z2 o2 c" x3 k0 w
- void loop() {* P% l; o+ v5 y4 E* M" \; q
- server.handleClient();- v/ r0 c" p( y, B o
- delay(1);) c0 w$ \. Z# F" W/ ^
- }
c6 j: q6 `/ A - String doGet(String url){
1 }! M; B) }! z& I& r - if ((WiFiMulti.run() == WL_CONNECTED)) {! ` z) Z9 B) {0 p& r
- HTTPClient http;
8 }0 b$ X* B5 l& G2 Q - Serial.println("[HTTP] begin...");
" [, |& [# N$ [. f/ T% T% b" K - if (url.startsWith("https")) {0 L3 G0 P2 t' {5 y6 o% u. E2 }
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 w8 v" Q( R0 e2 h
- } else {" Y z, @$ F1 G7 s2 N' n
- http.begin(url);
8 b: ~" |9 i8 p8 g# s6 l- B - }9 _6 y- c$ V h' e7 e2 L; ], Z( ]
- Serial.println("[HTTP] GET...");$ D* \/ a- K; `% J* m
- int httpCode = http.GET();, S6 z ?; q( {3 D! p' z5 V
- if (httpCode > 0) {
; @) m- ?8 Y9 J% n - Serial.printf("[HTTP] code: %d\n", httpCode);' ~+ } u* \% f" @9 W/ E
- if (httpCode == HTTP_CODE_OK) {+ y2 x4 I+ L& X/ |
- String payload = http.getString();4 [" w8 Y; O* U$ o" j( @+ t
- Serial.println(payload);
3 q; w% C+ v7 o; l - Serial.print("\r\n");( C/ a: H$ r* u" p$ C; g
- return payload;) ~% C) y, Z, }" G6 \1 i5 h
- }( `1 k1 J8 b! p8 i
- } else {4 q- p6 w& u2 b% h
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ z5 j# Z1 f2 ~) _4 R
- http.errorToString(httpCode).c_str());- [3 }9 v. ^% ? [1 j& i
- }
_; _2 N6 |4 D - http.end();
, r+ w9 j% u' E/ e - return "";
& p% }) T8 W' c1 U' F3 ?, j3 e - }( I4 n) l; X- e' A# L; N4 f" @
- }8 b/ g, s7 c% f
- void mainAction() {9 U8 c5 D: w/ \% l2 L6 F* ^
- // 发送请求
/ y1 A$ D. N0 t - doGet("http://google.cn");
9 D( h* D4 \4 B% Q - }
, y3 p0 a9 C: s% v
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