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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)! A3 ^9 s1 _9 H* t! d* a
- #include <ESP8266HTTPClient.h>6 C2 \# D! C. \
- #include <ESP8266WiFi.h>
% Y% g& E# ^5 d8 c* n2 {" V$ C - #include <ESP8266WiFiMulti.h>$ T" u/ W9 u$ C. L1 i
- #include <ESP8266WebServer.h>
, O0 } S. U: I6 ~4 D! x2 O - #include <arduino.h>2 ?) c' x$ V6 h! q6 ^
- ESP8266WiFiMulti WiFiMulti;
& z# L2 X" ^& w* w( i - ESP8266WebServer server(80);
' O k6 q2 D" Z$ g) f- Q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# T- U/ Z$ K7 G; e* X - ADC_MODE(ADC_VCC);
. L. \1 B9 q# T2 \5 h- e - void setup() {
4 \+ k6 L- g( E$ Z9 { - Serial.begin(115200);% @/ t% \0 F2 C+ L
- Serial.print("\r\n\n");1 ` Z0 y! B% n* N8 s$ m. [& P
- pinMode(2,OUTPUT);
/ G6 W* D2 O2 l! T8 O) z2 z2 N - // WIFI
+ V7 I- ?* [+ a: i0 W7 t - WiFi.mode(WIFI_STA);
B% X) c- Z, a3 e# ^. g! w4 r- M - WiFi.hostname("Sparkle");8 n0 O3 y$ Q @
- WiFiMulti.addAP("wifi ssid", "wifi password");
- m. g+ ?/ n) D8 _ - int tryNum = 15;8 Y! f2 p1 F1 d& c
- Serial.print("Connect WiFi");! i, L" D" J# h5 h
- while (WiFiMulti.run() != WL_CONNECTED) {
# u) x- T, ?6 K8 T) p/ y- [ - digitalWrite(2,0);
1 u" O, m# u w. p0 c3 M) h - delay(200);, E' o& F1 X' p
- digitalWrite(2,1);' }+ L; N4 h+ v4 l
- delay(300);
1 ]: B9 k: _7 w - Serial.print(".");$ n2 P3 Z& m6 F( e z% R' a8 ~3 D
- tryNum--;
' v7 K% c5 j! q - if (tryNum == 0) {: D* F- s7 S- v7 ^
- // 1min
, R& Q; U L: @3 v4 w - // ESP.deepSleep(60e6);& e: r3 `+ U4 L+ t9 X7 V
- ESP.deepSleep(0);
) h0 z% E7 c8 [+ k$ X7 I" y6 ]4 v - }7 f7 @/ E! M* A5 n$ k7 }7 f1 @5 w
- }4 Z6 R9 _' ?0 F4 w7 L6 s
- Serial.print("\r\n");
0 i2 D* s1 z: N- x - digitalWrite(2,1);3 b' w& H1 u- A
- Serial.print("IP address : ");
4 w: @4 J M2 x; E3 ~/ w - Serial.println(WiFi.localIP());
! [2 R, i# B1 R) U1 h, x - server.on("/", HTTP_GET, [](){ r4 m6 K5 ^6 l
- server.sendHeader("Connection", "close");- I2 g6 }2 u! C" x2 C9 Y
- server.send(200, "text/html", serverIndex);+ f6 Q7 Y5 {0 v/ g4 ]
- });
. S- [( L4 Q4 U7 i, L - server.on("/update", HTTP_POST, [](){/ ~5 @% B p {
- server.sendHeader("Connection", "close");3 h: ^$ r! d+ s1 U. K" h2 P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 c+ ~+ } Y) i' L" m$ I+ x - ESP.restart();$ U! V) N& e. c# W
- },[](){8 H @# ^$ ]6 k) N; H: ^% p
- HTTPUpload& upload = server.upload();
; I {0 P8 s, a - if(upload.status == UPLOAD_FILE_START){, {& ?% ]5 t( |1 ]
- Serial.setDebugOutput(true);" z( F. E( S4 T* D6 b; P
- Serial.printf("Update: %s\n", upload.filename.c_str());. z3 O8 m6 G- R% u7 ?/ X2 Z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- n8 b/ a1 h7 j+ C7 m# A - if(!Update.begin(maxSketchSpace)){
* d z2 o3 A8 a1 W* A4 k) z) |' k - Update.printError(Serial);/ K7 D& K8 ^6 p7 G! {4 f8 S
- }
8 ^0 @0 @( Z( ~# U8 X* }1 l* n6 R9 \ - } else if(upload.status == UPLOAD_FILE_WRITE){) n1 q: E7 v6 o+ U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' b: t' M0 r- I) o - Update.printError(Serial);5 G6 M; j' j6 k8 q
- }+ H: V' R1 T8 w/ `6 T) I0 v
- } else if(upload.status == UPLOAD_FILE_END){2 |( X1 k: B# z1 I* F
- if(Update.end(true)){3 Z6 g$ x) G# U# @0 ]5 S3 y" ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ L5 J4 w r) K' M6 ]
- } else {
& M2 v. i. u7 C - Update.printError(Serial);9 N# {9 c# C3 t" G1 a& Z
- }
+ x& f; }2 R' p - Serial.setDebugOutput(false);
8 M) u; d9 r' E" [ - }
- M' `# q8 f c2 w1 `9 j; E - yield();+ b2 b$ B3 W8 }1 a- B! n7 w F
- });
; N7 v2 J$ }# I+ ^2 G - 7 P+ N1 ^! c+ q5 T4 @
- digitalWrite(2,0);* E0 `& P1 I4 q) F+ k! n
- mainAction();+ O6 J. U% P; S8 l8 w1 S7 P7 u
- if (digitalRead(0)){
% R7 [7 A6 l$ _) ? - ESP.deepSleep(0);9 d0 w2 g8 b' a, s6 o. O: s' x3 |
- } else {
/ S, i/ v6 X! w3 L( t h4 s - server.begin();
/ T8 {/ ]$ Z$ {- l% r2 ?0 s+ V) w( p - }
# s ~8 r. F' d, O- ^1 c - }5 F, i' U& a6 n2 J7 ?% ?
- void loop() {4 v" r9 z4 L! }* O% [. w' d
- server.handleClient();
9 G' C1 E% H" N }* J0 U2 x - delay(1);
6 p" Y8 M- i5 e- Y* A: j+ E& {6 i& l - }8 z* I: q& | m! \$ J6 X
- String doGet(String url){6 b. p5 S8 _. V3 J% _- \1 g- E
- if ((WiFiMulti.run() == WL_CONNECTED)) { x2 X! v7 J5 `
- HTTPClient http;7 X% s* `. M k) K
- Serial.println("[HTTP] begin...");. c2 o: Z5 o+ K/ ]
- if (url.startsWith("https")) {% K( |2 z( h ]9 K0 @4 N. X, C+ ?
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. e# ~: ?- E K3 E( G0 I* y$ J
- } else {
! ?" s- e) N* x( C4 M - http.begin(url);
; v0 ~. h& f- E$ @ - }0 q! a7 f, Q$ W# Q
- Serial.println("[HTTP] GET...");
; t w6 R. e9 b p. @9 G! T7 D% j/ C+ x7 b - int httpCode = http.GET();
+ i% a/ Z: p* i c% R# Z - if (httpCode > 0) {, z, t$ c, j8 y8 Z* W: F: v4 z
- Serial.printf("[HTTP] code: %d\n", httpCode);2 u4 E. S" k9 o
- if (httpCode == HTTP_CODE_OK) {
! O! L8 |/ I) {; i$ @ - String payload = http.getString();
4 H# S* a `- [7 S$ M - Serial.println(payload);
* y; }+ t& p5 C - Serial.print("\r\n");, {) u+ ^# l9 n6 i( f& ]" N
- return payload;! {% r2 H ^1 f b( s" i
- }8 c2 s6 t. _8 w$ I
- } else {4 U, }5 G* n5 i) V
- Serial.printf("[HTTP] GET... failed, error: %s\n",! z9 d0 z6 u9 Q+ v
- http.errorToString(httpCode).c_str());
+ u" t0 _% T7 |- W; s - }
( p9 z7 l% T3 k0 D" Q; M- H v - http.end();* t) s& i; Y8 p
- return "";
: ~/ N+ e; ^* d- \# M d( l" @ - }9 W0 ^; i- C6 N3 T
- }6 L) J' x0 H i7 }
- void mainAction() {
! z4 v0 V K. O; _# L - // 发送请求
' _; R4 q3 B+ f6 d5 v( N0 m - doGet("http://google.cn");9 y' s- {; C4 I8 \& L# J' x: {, i
- }5 l9 _, L+ Q. ^0 _/ d y
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