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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)
" j# ]+ d" A0 t& D- #include <ESP8266HTTPClient.h>5 v2 y- z& N4 b0 i% }1 E, h
- #include <ESP8266WiFi.h>% b; |4 n0 A& O9 ~
- #include <ESP8266WiFiMulti.h>
+ Q0 Y& a: [! s" G3 n3 o - #include <ESP8266WebServer.h>
7 `) J' y- R" d( w4 D5 E - #include <arduino.h>* t) [: k. @. W$ b% l& g" \. g6 e4 E
- ESP8266WiFiMulti WiFiMulti;- L* A: u" t6 i
- ESP8266WebServer server(80);
6 R: S0 T: X; U9 o7 ]( H$ ~+ W# P - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' X% @1 \+ ]: y0 _9 h. ?
- ADC_MODE(ADC_VCC);
% L3 `# U! P4 X* e: w- T9 D - void setup() {
; a, g6 i$ K, ~4 R0 @. I1 W0 u0 C - Serial.begin(115200);
- y7 I9 B$ s# E0 Y1 @2 l - Serial.print("\r\n\n");
& L8 X; v, x' z - pinMode(2,OUTPUT);
; x0 Z0 ]+ z6 @4 d- ~ - // WIFI0 F5 P0 E" C. O5 |
- WiFi.mode(WIFI_STA);& n1 P% }; ^6 u( w( [0 a) k8 Z
- WiFi.hostname("Sparkle");# l; A2 E3 H! G4 I/ H: m3 |
- WiFiMulti.addAP("wifi ssid", "wifi password");, n$ O! q, E- m1 o
- int tryNum = 15;# p# T8 B* M: N6 W3 s5 w& }$ W
- Serial.print("Connect WiFi");7 ?$ _6 O" X# t$ ~7 ^2 P
- while (WiFiMulti.run() != WL_CONNECTED) {+ N2 d) w& p. N" w# W: L* U' H
- digitalWrite(2,0);
+ k+ |0 S; y! {% j( A - delay(200);4 ~8 v- D( ^: X3 j" ?
- digitalWrite(2,1);
1 u7 V1 r5 A: J' ?7 P1 V0 }/ g - delay(300);
9 J$ R: s$ ?+ Y( x# m7 Y3 s - Serial.print(".");# O" z/ p' e0 u; o9 s ^
- tryNum--;7 s( g0 e* c4 \5 Y/ r! X
- if (tryNum == 0) {
8 H0 R R& {0 a( ^ - // 1min
8 E# p6 c1 b6 f" d6 T - // ESP.deepSleep(60e6);+ d4 l9 \; w" R6 k2 \
- ESP.deepSleep(0);
% g; [) n. L4 m- T& x6 h - }3 e- B* }1 s' X7 K# M! _
- }1 h7 b R8 Z J% T; y
- Serial.print("\r\n");
" ?$ n4 q2 G/ r: g - digitalWrite(2,1);& ^" c( \1 _! W( m% E" o
- Serial.print("IP address : ");; H& e: P) r8 \; Z! r
- Serial.println(WiFi.localIP());" c% B* z/ a0 Z2 Y' O# \$ r
- server.on("/", HTTP_GET, [](){
& h/ t4 K$ e) r7 C - server.sendHeader("Connection", "close");
1 G" z5 b; l! B# M9 Y8 p& u0 a - server.send(200, "text/html", serverIndex);, b8 x! J; _0 v7 U# j1 n+ Y. Y
- });
. ]5 Y: h8 A" g2 n+ `( h* E1 l: Q - server.on("/update", HTTP_POST, [](){
" D& S g/ c4 y1 L - server.sendHeader("Connection", "close");( N* \8 g1 t( i3 v, W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 u- {6 R" K; B' q* G, t# P - ESP.restart();
) Q7 A2 p2 ?; f - },[](){
) j+ ]- W$ _+ w' I8 G - HTTPUpload& upload = server.upload();: x; U3 }2 v# J8 Y% V5 W" r
- if(upload.status == UPLOAD_FILE_START){
2 ]0 ^; ^6 A* b( D, u4 M - Serial.setDebugOutput(true);
# Z* a9 ]$ z2 x. f3 ^0 G, F - Serial.printf("Update: %s\n", upload.filename.c_str());
& A a7 y U" z* h9 \( ^ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ @ _: v- K5 P1 e6 \( W+ A" P. [+ H - if(!Update.begin(maxSketchSpace)){
, r, a k6 ~" a% C- H. X - Update.printError(Serial);5 f! B1 o6 C7 W; @: ^; e
- }, q3 F* C0 S# ? K- _5 k3 z) m7 z
- } else if(upload.status == UPLOAD_FILE_WRITE){
2 a+ z# i5 E% I5 M K! j; U# A% U/ J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ ]# K: c" G' G' n3 _/ w
- Update.printError(Serial);
" ?# t; H9 K4 y/ A+ E, Q: \# S1 ?& E6 [' ] - }
& ]6 W$ [* O/ q0 w, c - } else if(upload.status == UPLOAD_FILE_END){
, |/ d7 c: y# b2 q9 p1 a - if(Update.end(true)){# I/ t- b7 B, k2 b0 R
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 w5 i, ?6 _9 p - } else {, h0 A/ c# q# C5 U0 ^# c" b5 c
- Update.printError(Serial);
4 n8 D1 h1 p$ I c" ` - }3 j% C% l$ n2 _
- Serial.setDebugOutput(false);
8 x2 O) g& n/ G7 q! b# a: x8 e - }
2 K* [/ V+ V: U - yield();
3 o5 D. W0 g( T0 x' r2 m r - });
! }- B, l7 A* U: L5 [" Y' Z - 9 R/ Q2 k: J6 d2 J6 Y* U* P- F
- digitalWrite(2,0);
7 t$ V% Z6 J9 S Q - mainAction();
/ \. y; B) a' P, j+ S5 ? - if (digitalRead(0)){; x* v3 {" v- @4 }1 P
- ESP.deepSleep(0);
4 K1 Z% q/ H! Y1 T4 X - } else {
6 y# [! T P& y5 q4 m - server.begin();
: H7 v ]* r D( E, k - }1 t3 O5 `3 \$ r, @0 @! ^+ c, P
- }
# y5 v! B0 r& X+ J, u( D t& l/ m7 g - void loop() {2 ^" U" Y- R# n6 k0 A2 o: F+ e
- server.handleClient();2 g. K3 I7 c" y+ o) L
- delay(1);" K/ U$ h$ A+ X0 f
- }- ]6 F: j: L5 b$ j% T' {
- String doGet(String url){' Q* {; e% n. c& g/ Q5 K
- if ((WiFiMulti.run() == WL_CONNECTED)) {, b5 A7 g# l/ n# F0 p1 m5 J
- HTTPClient http;, X* n6 m9 ?3 i+ N% A; t
- Serial.println("[HTTP] begin...");
2 Z/ |" O# k& w4 c' z0 K - if (url.startsWith("https")) {3 D. C8 b: Y* {/ W5 s
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" A5 \6 y9 ]. N* X
- } else {
9 W: B- r, a4 l3 ^" G. s - http.begin(url);* A$ u% r& v6 M0 t7 D! \6 b1 q
- }
" O: N4 m1 I6 x0 r - Serial.println("[HTTP] GET...");6 A. L1 b5 U" T& t' c
- int httpCode = http.GET();2 I. e t: c8 L7 R/ p
- if (httpCode > 0) {
3 E* S9 o: D% X- v - Serial.printf("[HTTP] code: %d\n", httpCode);
4 k5 f, u, \: H5 W1 _& r, z - if (httpCode == HTTP_CODE_OK) {, { D* U+ f% ] V# g6 d
- String payload = http.getString();
# O# c. ^2 N! `8 _& P - Serial.println(payload); j l( I8 D/ H! I* e7 t* Z3 c/ O
- Serial.print("\r\n");% w: V& h$ W5 \( R5 Q5 c9 ]5 `
- return payload;1 G6 X1 H% a0 O: a$ b7 r2 `1 H$ Q
- }1 Z }& u6 t4 B$ H I; t+ h, M
- } else {
, C) n* p/ d% s3 w0 e - Serial.printf("[HTTP] GET... failed, error: %s\n",; }! K/ P) X" |% f" x2 D
- http.errorToString(httpCode).c_str());4 U3 D; B, k9 b! t6 z- y
- }. A+ `$ y4 h+ f8 [# r
- http.end();5 }1 W) f) f1 Z# E8 i# [
- return "";. v$ R7 H* p0 f* t* ^" ?+ A' }$ b
- }
, j) g; R8 d, `; {7 ? - }( S/ v( G6 n; \! C
- void mainAction() {
6 b: z/ }& L! F- L* G, y - // 发送请求& W% ~. I' f: W& z7 C
- doGet("http://google.cn");( o3 ?- N. `. W9 S0 }/ y% e
- }
; e/ G1 B6 r! S+ U1 f
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