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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)
# p# V, Y! ^! K3 @4 B- #include <ESP8266HTTPClient.h>/ Z! x3 _+ A! I3 n' f3 \7 f8 `# g' K
- #include <ESP8266WiFi.h>
3 R/ l& Y V) E" q$ P4 [# r* m - #include <ESP8266WiFiMulti.h> u: a# L) f# _ {1 I- l! s9 P
- #include <ESP8266WebServer.h>6 m) a. R J* ?7 e, H1 a
- #include <arduino.h>
+ g* Y( C F. H; _: F; @ - ESP8266WiFiMulti WiFiMulti;, b6 b1 M- U0 Y8 \. k `
- ESP8266WebServer server(80);
( |1 ~3 W& q$ ^% Q$ ^" a - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 d; n6 P0 G/ P' @+ p' Q
- ADC_MODE(ADC_VCC);
3 P8 N2 {! u5 B. k& [2 x - void setup() {! U7 e3 w: u3 A. ~: @, n$ b
- Serial.begin(115200);
7 s% A: o+ d# y: F/ v. j) t - Serial.print("\r\n\n");
# N) F0 U! T0 L) E2 U9 D+ T1 S - pinMode(2,OUTPUT);+ Z6 X. k1 |) z/ G, D
- // WIFI
! t1 ?0 I7 \( o, U7 f; H - WiFi.mode(WIFI_STA);( J# y% M. {# I3 w2 G! _5 r
- WiFi.hostname("Sparkle");3 b7 q3 ]- s' J6 \, b% ^ |
- WiFiMulti.addAP("wifi ssid", "wifi password");
/ x' g7 m2 @5 P9 X- f - int tryNum = 15;' p) @) `$ L* F* n
- Serial.print("Connect WiFi");
' b/ n1 A3 H8 Z: l5 ] - while (WiFiMulti.run() != WL_CONNECTED) {
3 u/ }) K3 @5 v5 d+ c1 H+ Z - digitalWrite(2,0);
7 r; M* R5 J( N - delay(200);0 ?& K9 k& l/ L9 S0 O4 O; ^2 x: a
- digitalWrite(2,1);4 c8 D7 K4 b. ^
- delay(300);) y8 G4 }7 v1 n7 i+ S
- Serial.print(".");
) n9 |* V& i a8 _* Z: N - tryNum--;
$ v- ^& t0 H% X - if (tryNum == 0) {) m3 {, G7 h/ J: j k
- // 1min
; t1 e& D% V: U# K2 k - // ESP.deepSleep(60e6);
5 t$ K2 Y: i, Y! I2 o" ^& u - ESP.deepSleep(0);, a0 ]3 x6 m- a m, }" t% W
- }
9 d3 J" l8 H$ d0 K* S- _+ J - }
" v; \4 s5 M; _! T ]# M - Serial.print("\r\n");
8 @3 _; Z6 \& D/ `, r - digitalWrite(2,1);) W. F3 b/ L: Q" c# z% l# Z( z3 g
- Serial.print("IP address : ");
! i8 T# y, S$ h, o2 a - Serial.println(WiFi.localIP()); N5 q+ @8 C; o
- server.on("/", HTTP_GET, [](){7 C& z3 M7 M9 N( T
- server.sendHeader("Connection", "close");
9 |% l9 l9 C9 a! N; b - server.send(200, "text/html", serverIndex);
/ b" U7 G7 Q' T0 W% ?- Q5 }% {: r; } - });
7 R) B) V$ ~& F& c8 r2 r - server.on("/update", HTTP_POST, [](){: M$ r9 b+ J: a) i
- server.sendHeader("Connection", "close");
7 I; v/ k( o3 _& X1 G5 ?8 _ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ e, g2 W/ K3 R( o k1 E, a8 w t
- ESP.restart();& x0 N$ _/ ~$ {& O9 L( \
- },[](){
- ?1 n2 H. @4 K& |' U - HTTPUpload& upload = server.upload();$ i( P( ]0 j6 q5 W% E" I
- if(upload.status == UPLOAD_FILE_START){
3 F* B! Q8 T9 l# E$ E - Serial.setDebugOutput(true);. U! L$ F" I3 [; C! m t
- Serial.printf("Update: %s\n", upload.filename.c_str());
}* q0 a/ X, T; i - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ u9 [1 H# q; k6 Q' o - if(!Update.begin(maxSketchSpace)){
( A7 A3 B( W, R0 q! r - Update.printError(Serial);
' R0 t8 {* @1 k& H% a x+ k: n - }( z/ ?8 e) r1 e2 @$ E0 e5 f* n4 ]
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 b, C5 R. w" h: ~2 z3 l% e - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) F6 F# b9 n) ^0 `
- Update.printError(Serial);+ \9 {! W# `6 [5 b8 f a& k
- }0 y( {/ }, t ]8 l, J8 ]1 U
- } else if(upload.status == UPLOAD_FILE_END){
+ K3 O+ L: N1 D' A/ s - if(Update.end(true)){
( g" d6 I, F2 ]# K, N& W - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& i4 Z7 n$ L7 E# E
- } else {
8 V) P% e$ x5 }* g - Update.printError(Serial);6 i& {) r5 K4 ?9 }/ U
- }( }6 H3 H0 j' S n
- Serial.setDebugOutput(false);
, U1 X5 Z! t% x/ U/ E8 s - }
6 C b2 W( i/ t( o1 [ - yield(); H. \# Q1 H: q1 w
- });7 P9 t2 j$ n, p) m$ Z0 g
-
* l! q: g) X- M* r$ W4 ~, t1 m4 N - digitalWrite(2,0);
) g V5 v, j7 R - mainAction();3 H) T) P0 z) I+ G3 H7 w& u# [( ~
- if (digitalRead(0)){
- y5 v) B" C% T3 O+ N - ESP.deepSleep(0);$ K8 q L4 O/ \8 z
- } else {
7 M4 G6 l4 l$ o5 O+ u( h6 t! ]" ? - server.begin();
& ]" E6 Y9 n' m9 i - }& Q$ f" g. c4 s' e6 Q. b
- }
) m: x) H6 s6 ]5 f - void loop() {. Y2 s5 n+ m5 ]/ _7 H
- server.handleClient();
& K" q# y- K+ d3 o - delay(1);. \7 q/ \' Y/ ]/ p2 y9 i* X
- }
5 N7 m" u/ E9 U& a8 S - String doGet(String url){% K1 M Y/ s& X+ @6 |+ M
- if ((WiFiMulti.run() == WL_CONNECTED)) {: h2 e0 h0 y) a# }1 s, A, x
- HTTPClient http;
0 B6 ?) H w* w: _ - Serial.println("[HTTP] begin...");/ h; K" z" V1 T4 J( {
- if (url.startsWith("https")) {
' I2 A4 L5 K: D9 a4 B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ X% S# a& R% k! C. D4 e1 C
- } else {
& T: ?8 u! y9 t+ A1 y- ?& g - http.begin(url);
4 w7 Q, A4 _( p - }* q; \8 F% ` ^) p% \- m' u, \
- Serial.println("[HTTP] GET...");! L0 n0 i3 {0 K
- int httpCode = http.GET();
) `. {4 N, t; `. ?) ~7 m3 e - if (httpCode > 0) {1 V: D: L/ h: n) P, z
- Serial.printf("[HTTP] code: %d\n", httpCode);
* X g) ?6 @7 E* g( {7 O. W) G - if (httpCode == HTTP_CODE_OK) {: o1 [- Y' J3 M7 ^! w( t8 ]
- String payload = http.getString();, z' e5 B; w- F! |9 r8 g) J/ r
- Serial.println(payload);
# L! g; t5 D2 R8 S - Serial.print("\r\n");
9 }8 j" r1 I s1 q( ^( |8 X$ p2 V - return payload;
* z: |; K; F3 o5 A - }% w6 C+ f7 j6 ~6 @; Y. @0 q
- } else {! x0 Z7 S) r f' T
- Serial.printf("[HTTP] GET... failed, error: %s\n",% {9 L1 m; S( ^) d* T* a
- http.errorToString(httpCode).c_str());5 o5 [- l9 m% q# [7 O) y
- }, ~0 V; w4 g- C3 r+ \7 w4 d! a5 X
- http.end();0 R; [3 i( @' z/ w: l- B
- return "";
# n( Z" }9 R E6 l$ Q6 P - }2 K" \1 m) }# h. G9 ?0 I
- }& L7 z& i1 x1 Q- H& s& H. v" f6 N7 p
- void mainAction() {
9 G# l: t4 ]$ A, R - // 发送请求
- i6 h) y& a$ P - doGet("http://google.cn");$ Q* r) t5 n1 |, a) v3 r
- }
5 f2 j9 p/ I! P+ l
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