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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)
$ ^- ]! f9 `3 {; }7 L- #include <ESP8266HTTPClient.h>
% f5 C" F( K' p# Q2 h2 I - #include <ESP8266WiFi.h>. |$ E6 p0 K/ S9 U' a+ E
- #include <ESP8266WiFiMulti.h>) z2 P) ^$ h- q' u+ x0 w7 j
- #include <ESP8266WebServer.h>
6 W) X% R; S8 i% C" P0 s1 P% [8 \1 K - #include <arduino.h>5 A5 }, i/ k0 y3 g- t& p. ^
- ESP8266WiFiMulti WiFiMulti;4 v7 Q# H9 M1 l( {
- ESP8266WebServer server(80);
: F) V/ {( U6 M1 m% B4 E - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ a3 S1 R5 M' R8 K4 }7 E
- ADC_MODE(ADC_VCC);! B" v+ R3 L' M5 h5 K7 l3 g3 ~9 t9 }
- void setup() {
2 Z. P7 y1 i+ A3 h" F - Serial.begin(115200);
, z0 @ w% n" I$ {3 @; t" }) h3 _6 A - Serial.print("\r\n\n");
3 B" V; E) p0 N% a2 r6 m0 n: m7 I - pinMode(2,OUTPUT);
% @0 ]5 D' t0 T/ J( v+ p _; `# E - // WIFI
9 C6 o9 c' X, z- K! `( \/ x) y8 W - WiFi.mode(WIFI_STA);% y2 ?& T- g) Z* J* b
- WiFi.hostname("Sparkle");' z2 D4 q) n; ~+ c4 r
- WiFiMulti.addAP("wifi ssid", "wifi password");( N; B: v2 H, N8 r5 g, i6 [
- int tryNum = 15;
W5 i* [4 x, X- r - Serial.print("Connect WiFi");% ]% C) ?: z+ a+ q& {
- while (WiFiMulti.run() != WL_CONNECTED) {
7 b ^# U8 r$ l. i' |' [4 M - digitalWrite(2,0);: H7 q/ {- J) N% L% k0 b/ f
- delay(200);3 W& [9 i7 x1 l& h8 s* l
- digitalWrite(2,1);
! O0 _' z( W( S: R# |. l! C - delay(300);
1 @- W' ]9 _8 Y% b - Serial.print(".");
' T+ o- T2 d- T7 H - tryNum--;
( W& [- b/ h* g8 m9 q1 e. u - if (tryNum == 0) {
2 T8 B: F j% y9 i( X" g- Q - // 1min
3 U8 [1 j' B: [) r - // ESP.deepSleep(60e6);: d' S% E* A# I- s, L9 @1 O
- ESP.deepSleep(0);) |" u: |# u& H \: |1 T
- }
8 q( m, o. k1 T - }, e0 r( P% v) E% W* G. [( R
- Serial.print("\r\n");) l, E2 ] z: i
- digitalWrite(2,1);9 v: z3 S" z/ @ G1 S! H
- Serial.print("IP address : ");: P7 x8 E) D. \; P
- Serial.println(WiFi.localIP());
3 n' C0 K0 O( w* H; M& E - server.on("/", HTTP_GET, [](){$ w5 ]# N9 z0 D/ _: P% ]6 g
- server.sendHeader("Connection", "close");
- [9 n1 k) C2 R2 \* ` - server.send(200, "text/html", serverIndex);# U/ Y5 p _4 B/ X: r* i6 l$ d& q
- });; d0 E9 D' h. F7 U
- server.on("/update", HTTP_POST, [](){5 G% R5 A a( K
- server.sendHeader("Connection", "close");
) b& {# T% \6 z) k- O- z) m - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% |3 F s1 ?2 k' R6 W T4 z - ESP.restart();
$ Z, u# b( Z: [- ]' ^3 ?) G - },[](){
* K& H0 [1 F! u) w - HTTPUpload& upload = server.upload();* u: r1 Q8 [% o- K( i4 H4 _
- if(upload.status == UPLOAD_FILE_START){
+ K$ O3 C& ]) R( q8 n - Serial.setDebugOutput(true);* K6 q1 j6 s0 _8 n& i
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 V1 I9 W0 r5 e5 f" w" e4 _( M - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& w' b! |2 s% V3 x - if(!Update.begin(maxSketchSpace)){. v9 W9 y; p) P$ m
- Update.printError(Serial);) V( Q3 d) t Y
- }
4 y2 {1 x2 x$ l2 D4 Q8 k+ c - } else if(upload.status == UPLOAD_FILE_WRITE){
7 s, z8 }$ `) ?5 _7 X; ]$ q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) \$ S) M c: h- z
- Update.printError(Serial);/ r! O8 j s# n; @& G
- }
- d* F8 b' v! ~8 S( c0 V - } else if(upload.status == UPLOAD_FILE_END){
W+ [0 N5 t! n1 t# g; J - if(Update.end(true)){
( }8 f! {0 ~9 X( t- l) Q2 V. j4 I3 z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 o4 `* s* n) [) N' i* I
- } else {) H5 B' M# x% J5 p, }
- Update.printError(Serial);
7 A0 {+ K8 u9 r- l3 ]% v - }0 Q1 g7 [4 c4 I- y# ?
- Serial.setDebugOutput(false);- F6 u# z6 x: N
- }
$ @& X( }( m; ~) ^ - yield();! o' d% q' _' Y. G7 ~1 T
- });
0 I8 o/ x1 }4 Y9 j - & f2 O# y( o! b
- digitalWrite(2,0);
1 j$ ^" Q/ g% Q& w% A8 g [ - mainAction();$ E% T3 ~ e8 l( g
- if (digitalRead(0)){. j3 q) }8 n& u& h$ d+ Q) J2 [
- ESP.deepSleep(0);$ y+ y7 u, {2 o
- } else {6 ?" i5 P/ v& K9 b" [$ F
- server.begin();
2 ^# [3 S* p/ y, M0 T; q+ k7 q) q; | - }
1 S1 P4 F+ q4 s) C - }
' `7 k5 O/ L/ \0 j - void loop() {- |; `. m' a/ B4 |; {; i! X
- server.handleClient();
1 l/ b% a! {. e- Z( K; q, K - delay(1);
- b0 R% {+ d( ]. D$ I1 ?2 P9 D% ` - }
0 V) u4 y: M$ P4 ~! P - String doGet(String url){8 F8 e) l& |8 L9 i1 |8 ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {/ B: M5 R2 [* E; O- E. t
- HTTPClient http;" Q1 d0 [; F7 F5 p8 x" }2 @% _
- Serial.println("[HTTP] begin...");2 P2 H. Q* G a& i/ p: `, U
- if (url.startsWith("https")) {
2 Q; T/ y% K( Y; t0 H9 c+ s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 C+ Z' f8 _4 g* ]* B' R( o - } else {% H: V3 Q* ?6 r z6 ]- h+ ~
- http.begin(url);, n1 \0 }# P! \2 O8 o0 ?, N) y( c
- }
( r* A; n5 T3 z - Serial.println("[HTTP] GET...");
- z3 p5 [- N7 n/ Z2 d - int httpCode = http.GET();
7 r2 F% J+ p" `& u& w, n, K; a - if (httpCode > 0) {
+ P$ z/ ^. \/ J, L4 @! I- S - Serial.printf("[HTTP] code: %d\n", httpCode);& _1 j) B0 ^8 r# q) Q4 R- L8 L
- if (httpCode == HTTP_CODE_OK) {. c) L2 t0 \/ c8 L/ m
- String payload = http.getString();; F# j! t# b1 s$ q; h
- Serial.println(payload);8 y6 x9 d4 H2 \/ f) X" A
- Serial.print("\r\n");& }% S/ V5 K# ?0 |
- return payload;
3 ~; n# E& }9 o' |3 T - }7 i* T. a4 w$ K' v
- } else {
% z# G4 h) m" N8 D7 J6 F. J; I - Serial.printf("[HTTP] GET... failed, error: %s\n",
5 E' [ u5 ], L3 @% Y& x - http.errorToString(httpCode).c_str());( u) a! a2 P, M, M4 U6 ]5 J9 |
- }( }5 ^, G3 V* b# ]: ~7 D* ~, H- L, t
- http.end(); p$ Z" |. R! ]3 @! o- f
- return "";2 }. M z, Z# n
- }
- [6 ~3 t; T) i8 u. v4 q4 v0 T. L4 v - }
) j# M* S& v `0 y: a - void mainAction() {, G1 S) h* o2 U8 f2 x( A
- // 发送请求
+ u( b8 I3 g; h# ?' O - doGet("http://google.cn");
1 \3 Y2 k- c7 H+ E a - }
! R2 g/ D p2 J
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