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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)
2 O( l7 K+ ~, e5 B- #include <ESP8266HTTPClient.h>" r- F8 g; v% l
- #include <ESP8266WiFi.h>. U, {( X. G. d+ z: @5 c1 l
- #include <ESP8266WiFiMulti.h>4 L$ ~* y, A3 [, D" R6 E9 G
- #include <ESP8266WebServer.h>6 |6 v* _: W$ ]- G2 E# z
- #include <arduino.h>
9 {9 s4 I5 E5 o5 O1 s9 I' W4 l - ESP8266WiFiMulti WiFiMulti;7 o6 G8 e! D3 F! S2 F/ h- N/ a
- ESP8266WebServer server(80);
( B% B; c1 D8 C j0 n+ U, w - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- `2 s7 n7 v$ h, D2 m - ADC_MODE(ADC_VCC);
# V) p2 T3 v+ A8 p- u - void setup() {
/ }3 K1 W: k4 \6 X& N - Serial.begin(115200);
6 E. Z. G$ c, O0 Z9 g5 I/ ]# M - Serial.print("\r\n\n");
3 V# b5 E& H; A. h' }. q, v3 i/ h9 M - pinMode(2,OUTPUT);) P% ?8 e$ c# d. b) `$ U! r
- // WIFI
( k8 \% P( M$ I/ l5 V, G; }8 O - WiFi.mode(WIFI_STA);
) q- i" y+ V k - WiFi.hostname("Sparkle");
3 ~5 |* d8 a6 [& v9 ]- _* J - WiFiMulti.addAP("wifi ssid", "wifi password");0 c7 V; Q ^# d1 M3 `/ H" O8 m
- int tryNum = 15;
: r/ Y |, Q e* \$ G8 V$ `% q - Serial.print("Connect WiFi");5 @' O# {( e+ @7 _2 G w, E9 r
- while (WiFiMulti.run() != WL_CONNECTED) {- @+ h. w3 h6 P- G
- digitalWrite(2,0);
: p. g9 O0 L5 P. ?2 o O - delay(200);0 E. B" I: P; }9 E5 N+ w3 s( o
- digitalWrite(2,1);
/ [$ M! ^. ]: ~3 N( H" t - delay(300);
% ~( S. L" S: \$ }7 W: ?* q - Serial.print(".");) @1 N8 i3 p* n: Q
- tryNum--;; n2 C; @2 J( A$ [3 i, F8 z) _
- if (tryNum == 0) {
# k& F, B; y2 w' j' ? - // 1min
7 y3 U$ n) B! W, T8 C - // ESP.deepSleep(60e6);$ l$ I& @* }! `& N; d3 B
- ESP.deepSleep(0);) Y2 y% t! D2 z1 _
- }4 A* {5 j9 k) {0 ]. {' Q: `( B/ F
- }
( Q( |2 r7 X& R - Serial.print("\r\n");- S' I" i! P! f- H, M* w
- digitalWrite(2,1);" I( g# ^! }' O1 D
- Serial.print("IP address : ");3 k7 d S7 z# h
- Serial.println(WiFi.localIP());
2 G$ g% A# @, q0 J - server.on("/", HTTP_GET, [](){
, s6 v( F& T5 t" y - server.sendHeader("Connection", "close");" P) ]2 S1 |' P5 t3 F2 r8 }
- server.send(200, "text/html", serverIndex);9 C" t! I$ G/ B9 E7 v) H( e
- });. q( |- w. `. |! i ]9 M* \' z
- server.on("/update", HTTP_POST, [](){) Y0 k) ` _: P9 N" i: O
- server.sendHeader("Connection", "close");. \9 S7 s9 j- t3 J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");" _( s& w2 s3 f: I
- ESP.restart();
) _- p/ Y* C a/ o" x, L7 D( q - },[](){
; D- X% ^0 g+ s4 r - HTTPUpload& upload = server.upload();4 e- `9 A7 i5 o8 X8 n+ m* p
- if(upload.status == UPLOAD_FILE_START){
z7 g* j/ f1 X2 d0 \& @8 U/ t, ~9 f - Serial.setDebugOutput(true);& w) Q U& A$ n A& w0 z6 C4 P2 L# }
- Serial.printf("Update: %s\n", upload.filename.c_str());6 ^, C! F. K. ]5 i
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, P+ {5 r; c0 j: ^ - if(!Update.begin(maxSketchSpace)){/ f: t, S( x# P/ z( [* B
- Update.printError(Serial);
7 _/ ]3 F: U- J# T# q( F, M - }
6 A! P: G* V' E& Q$ u - } else if(upload.status == UPLOAD_FILE_WRITE){$ Z: D/ [$ T" Y2 v& A n
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 A. p( N* t# @/ h - Update.printError(Serial);
6 M6 o7 ~6 f8 y# d - }
, |0 K n' f* L: \ s/ q/ s - } else if(upload.status == UPLOAD_FILE_END){
8 `: p5 A2 d) G8 ^! A& k - if(Update.end(true)){
% M6 H! t% r+ p2 m - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
U1 ^: |( Y" x0 v4 i - } else {
; q7 m7 z+ x) _. X9 N/ s - Update.printError(Serial);! \+ X. A4 u6 E, G
- }! a6 z7 w& @' Q" o3 p
- Serial.setDebugOutput(false);8 h7 A1 Q* l9 F* T& r* o1 I; W
- }
# s# ]- `# w- M$ H - yield();
- f7 `$ M) T- W8 G# R& g7 H - });5 |8 m; M8 K# l4 d2 Z
- , o( c+ s3 S- B- h) B) F
- digitalWrite(2,0);$ z- G8 T- `1 s' R
- mainAction();
$ {$ `( Y- g5 G7 }5 T5 `0 h( [ - if (digitalRead(0)){/ w: n, i Q" }/ w Q
- ESP.deepSleep(0);
- T' A# }8 M, [# J" [' D6 i - } else {- a% S8 T# a$ Y/ I1 ~
- server.begin();
, K/ m' k& q7 U& O( m" h8 @ - }
) `4 g8 Z! H5 x% u% J6 b# b - }
! r9 \8 @7 o5 d! q' }5 S* e - void loop() {
* E/ T1 D( x. i: o8 I8 E - server.handleClient(); P. T3 N3 D5 N6 w ~" ]' Q) F
- delay(1);
9 k- p) C* u# f9 w6 @& `; O - }3 { C) ~9 A( ^$ F5 Z
- String doGet(String url){
6 o: {1 d9 o. u- {7 J3 C( V U5 l - if ((WiFiMulti.run() == WL_CONNECTED)) {
: B) T% Q4 Y5 F" f - HTTPClient http;% e( z( }* ^( u# V
- Serial.println("[HTTP] begin...");
. [! w8 H; E: v; ^8 K1 u$ m$ H - if (url.startsWith("https")) {
' X+ |1 v% W1 E% K6 F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% o; g% `1 D$ a. V& k) P( W
- } else {
/ F4 _" E( R7 P) P$ ?4 V& g1 \ - http.begin(url);
q, R C5 w& r+ B - }6 M: w4 F$ v- K5 X' O* {
- Serial.println("[HTTP] GET...");
) Y+ o+ L2 O4 e' ]6 L Q( v; p - int httpCode = http.GET();) @& w% y! h( U/ O0 n9 X# z/ ^
- if (httpCode > 0) {
, _: K, t9 Q2 ?) E - Serial.printf("[HTTP] code: %d\n", httpCode);: r7 O2 J, z# X
- if (httpCode == HTTP_CODE_OK) {
5 ]/ i9 \5 T; G7 A* @ - String payload = http.getString();! A; H5 o5 {, P( ^
- Serial.println(payload);
0 G4 T* ?0 R* G; q; z, T7 m - Serial.print("\r\n");
3 f2 O3 r$ J: l7 |3 F - return payload;- C% M& B4 a- T
- }
4 _# N( N, `" ?* M, [9 M - } else {: g& r3 X3 j9 s3 b5 b
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! k, o/ r1 P5 x2 h0 {5 ^9 r - http.errorToString(httpCode).c_str());
% J2 D1 l% O5 Q) U - }
$ U; p( a5 c# D/ a - http.end();8 q6 U3 T. n; `' v* @
- return "";
# [/ {2 v9 Z$ y2 B( `' P! b$ z( u - }
" W, _' I' T- M/ |" j - }5 _* W* r) u+ F
- void mainAction() {1 D) y" e) C3 y @6 j1 l- R. x
- // 发送请求
5 T* F- |* `4 T8 v0 [ - doGet("http://google.cn");
2 G. A! x& J! ]1 ~$ Z, u - }
- Q3 `* n( B! w9 a/ E2 S1 P
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