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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)
& I: w1 C1 O3 U, I- X2 S4 L/ e) l- #include <ESP8266HTTPClient.h>
" C* A4 W! ]0 G1 S+ v* n2 Z - #include <ESP8266WiFi.h>
5 s: ^) V" U* e - #include <ESP8266WiFiMulti.h>& |& F7 Y0 g# t& x: O* C* I3 C
- #include <ESP8266WebServer.h>
v. u. t4 w; y - #include <arduino.h>
/ o0 _. c c, b5 m v w0 o- W - ESP8266WiFiMulti WiFiMulti;
8 Q( X# w# [2 u6 H - ESP8266WebServer server(80);3 l2 K7 d. r% _% W* a8 P
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! F% { e% g- H; u% S' U - ADC_MODE(ADC_VCC);& i) k) t2 k+ j- @7 t0 Q
- void setup() {2 Z- Z H# C3 J3 |3 m/ \3 d
- Serial.begin(115200);* x: z! I( d: y1 U. d& M! e
- Serial.print("\r\n\n");
: b: n3 I7 J6 `& e- @4 D - pinMode(2,OUTPUT);: _2 } \ U& ^
- // WIFI
" L0 ?9 {) V; n/ I2 U3 M - WiFi.mode(WIFI_STA);
8 y* ^9 j# e5 t6 A4 z - WiFi.hostname("Sparkle");2 M5 u3 f0 W- U+ |
- WiFiMulti.addAP("wifi ssid", "wifi password");
% d1 Q0 U1 h9 m2 }# z# @ - int tryNum = 15;5 f+ H7 J7 d/ _/ d; Z# |9 J
- Serial.print("Connect WiFi");" Z% {$ z5 R! x, U) n9 z4 g
- while (WiFiMulti.run() != WL_CONNECTED) {+ t4 K- u0 j4 c) W4 w
- digitalWrite(2,0);5 c9 n7 K, q: f& [' O! L
- delay(200);
3 s. E0 F. D; c9 n6 y, W1 _ - digitalWrite(2,1);
# T2 H) R( e4 u0 k# m - delay(300);
, S: i" S# h' R% c1 ]5 H F - Serial.print(".");
) V) x& S: ]1 z" W4 i1 i - tryNum--;
- U4 N: X# {3 E" q' n. X - if (tryNum == 0) {
. M2 q6 D: Y @ ]$ C - // 1min
. J9 W g9 {& e- U4 G. o5 z - // ESP.deepSleep(60e6);0 i0 ?& y& Q3 m) F9 B( R7 [
- ESP.deepSleep(0);, _6 o) d$ n: K
- }
6 Q4 M- }8 u8 w8 L& V - }
) N) R3 P$ N u: B/ o5 S b! g3 ? - Serial.print("\r\n");
! ~5 {+ G0 A/ G0 A - digitalWrite(2,1);* E; N. K6 X* C0 `% c9 K- ]
- Serial.print("IP address : ");
3 t+ A' C- l6 m/ |; G - Serial.println(WiFi.localIP());
6 O2 _6 M2 q5 n% B - server.on("/", HTTP_GET, [](){$ M8 q0 P' @: r/ Z: ^; ?9 G
- server.sendHeader("Connection", "close");
" t. h# V2 `% a0 Q8 E - server.send(200, "text/html", serverIndex);/ |5 s/ d2 d' P' B* z* c5 D" A
- });3 h3 |' v) Z2 x3 b* ^5 C
- server.on("/update", HTTP_POST, [](){( R. ^% U* `8 L1 ^" g$ f; y
- server.sendHeader("Connection", "close");
. Z* I, |. j. l7 x; }6 T w - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ c% W4 E9 k- A& M) l+ X/ w2 E; l' E
- ESP.restart();
& _4 d% Y3 _& Z9 R - },[](){; j+ W& v: o3 m
- HTTPUpload& upload = server.upload();
5 }- |3 M! H j - if(upload.status == UPLOAD_FILE_START){
1 p; z! \' t/ L0 b$ c' R - Serial.setDebugOutput(true);
0 v& X& u$ ?2 I6 J3 \5 N E1 } - Serial.printf("Update: %s\n", upload.filename.c_str());
% E' f; I/ l: |) n' x' ? - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) t; Z4 b+ y% \" z. s( [# M6 d
- if(!Update.begin(maxSketchSpace)){
# B2 ?, ]* Q" @3 H% y) k$ u# | - Update.printError(Serial);
) l7 F/ i- ]9 m4 i - }/ Y- g" ~ B: A H; X/ c/ [
- } else if(upload.status == UPLOAD_FILE_WRITE){2 u$ n- ]7 r; E3 E: f: n2 e% e
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ y/ F3 k1 D1 ~ p# z
- Update.printError(Serial);1 s" e) K0 z9 B& h
- }5 t3 q/ O6 c6 v3 C q" b( J
- } else if(upload.status == UPLOAD_FILE_END){
8 P$ J3 B# E, U/ G* ^2 c2 S e - if(Update.end(true)){
; B ]; @4 f- U8 s: Y/ W4 T - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 c( Y* o( G- Y+ K1 k, l3 w+ @0 ]
- } else {+ n, N. B8 l& w# @8 p$ @- O
- Update.printError(Serial);, z6 s, i/ X- ^3 _2 P# O u$ m- I
- }5 ~! c9 w6 o. A- S" o6 L6 `6 f. o _$ B8 r
- Serial.setDebugOutput(false);$ n2 O* x9 \8 n
- }& W$ r5 L8 K' D) Z# R6 j- U, W5 Q
- yield();! ~6 Z9 ^- w" q6 P+ \ {
- });; I+ i7 p" m( O! X
-
+ i1 e/ ]5 O' T4 y( S, m - digitalWrite(2,0);3 e7 Q3 x& N. e, Y3 Z: ]/ Y
- mainAction();9 [" f8 u, B8 q3 f
- if (digitalRead(0)){5 ^; A, m3 v% F
- ESP.deepSleep(0);. g# Z. T U4 g/ u% F [2 _
- } else {! E* O3 V: J, F1 t
- server.begin();
9 Y; J& p$ T* ? B8 f1 m - }
6 f* C+ [- E1 M' V" m$ ` - }% z* ~6 w8 ?0 k7 d* I3 `/ n: G/ f
- void loop() {
' w' J- G# e. W - server.handleClient();5 K3 m& l; v+ V, f* `; i8 Q
- delay(1);
; i" d0 ?6 V" I+ b# w& E) e - }
8 `3 O; a% Q0 ]4 ?+ |0 \$ S - String doGet(String url){* P8 i1 q. a- {+ r- q& a
- if ((WiFiMulti.run() == WL_CONNECTED)) { {; m2 a8 ~2 K
- HTTPClient http;8 U! t- F1 h, n% @. z4 P
- Serial.println("[HTTP] begin...");" g5 |+ \, L2 h0 r( q
- if (url.startsWith("https")) {4 a5 j4 ]% C0 O4 ?9 H
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. T/ r0 R# i+ }; o& _+ I
- } else {! Z. C6 l4 H8 [* v$ S/ F
- http.begin(url);- j7 @+ ~7 e& L8 y9 Y1 @7 v
- }* W3 o6 F: X+ V1 N& g6 n
- Serial.println("[HTTP] GET...");" C" s Q; c s& C2 W l: l' R' Z
- int httpCode = http.GET();
4 b0 K4 V. j# ^' V' r2 R, S" K- i( \ - if (httpCode > 0) {
6 w0 M: Y) } I/ Y: H - Serial.printf("[HTTP] code: %d\n", httpCode);, a( |( b4 w7 M0 o
- if (httpCode == HTTP_CODE_OK) {
d. {4 ~$ {8 ]5 `$ b0 c - String payload = http.getString();
0 `( _2 I5 H3 E/ @ - Serial.println(payload);
! |8 H4 r/ m, j - Serial.print("\r\n");
9 P3 A4 |8 f. X" h( L0 e - return payload;5 K7 Q, b9 F1 w* x( j8 u
- }2 @& P- k8 O' i! X4 F9 i% a
- } else {
% @/ S6 F. f3 ^) N3 L& n. A - Serial.printf("[HTTP] GET... failed, error: %s\n",
! z) _6 ], a$ J' u - http.errorToString(httpCode).c_str());' a9 z8 g8 a8 P3 I. V! Q; [. b
- }* V2 u5 l+ i9 a2 s6 }+ ^% P& G
- http.end();4 |; [: d# h- g5 y& r% R
- return "";* \$ ^% L4 H. u& O0 D' a( J0 G1 N! g
- }
& L! x7 v% P) W3 I+ f - }
e A4 J( E: V8 X4 u: ~ - void mainAction() {8 K3 o* k8 |2 n0 c$ a7 E' G
- // 发送请求, ]( W* A4 B2 |* [/ |; c' g; T
- doGet("http://google.cn");0 r0 I" Y2 `" o7 J/ F; f* r0 Q
- }; H5 D; n. g) Z0 y1 i# _
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