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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)6 E& v1 W8 E2 O, R1 g2 G3 u
- #include <ESP8266HTTPClient.h>
3 E( K, H U" t& q7 {# @4 z& z - #include <ESP8266WiFi.h>
- a3 T& i: N7 }0 r' j! A2 H) G - #include <ESP8266WiFiMulti.h>7 F+ Q3 A6 n: r& o* m' @
- #include <ESP8266WebServer.h>
4 g9 [. A0 s1 O& |) O6 r1 D1 N - #include <arduino.h>
5 o. C4 q x7 m+ r) X, J5 [ - ESP8266WiFiMulti WiFiMulti;
' v7 x- v) i) T1 ?2 M t2 m - ESP8266WebServer server(80);2 X* l, y* @6 v
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ t# ?8 S' |# N0 W) [5 Q8 K) @3 G+ E9 t - ADC_MODE(ADC_VCC);
, K4 y( R7 X7 G0 @5 p - void setup() {
& e; D- F, ^1 J4 G( d$ ~. q! a - Serial.begin(115200);
$ e* L6 p* L6 a( }7 A7 d7 R: x - Serial.print("\r\n\n");, Y# h- S. i0 a2 ]- P% ~
- pinMode(2,OUTPUT);
4 f/ V5 x% \ S; Y" Q |# v - // WIFI9 q; f4 E" B# ]! _
- WiFi.mode(WIFI_STA);
! x- t0 i7 E3 y8 A3 s - WiFi.hostname("Sparkle");
) z' B% Y" q. i; x" f/ U7 Y - WiFiMulti.addAP("wifi ssid", "wifi password");4 k+ h5 X$ T( }1 J1 R& O
- int tryNum = 15;
' T9 b4 q# `8 N( ?+ t - Serial.print("Connect WiFi");
9 @$ N/ b! m2 r8 o1 W3 n7 N - while (WiFiMulti.run() != WL_CONNECTED) {
9 q% ?1 g: H& M% G- P; d - digitalWrite(2,0);
* v7 P( {8 t( [( | - delay(200);! t8 V5 A$ S; g
- digitalWrite(2,1);
. \, v5 M$ g9 F' f% m - delay(300);# v; } t2 x' A, H5 x- W
- Serial.print(".");
& h% q }; @+ h+ j2 I1 ~ - tryNum--;8 B$ W, s/ D+ z4 d! f3 h9 n
- if (tryNum == 0) {
* a$ i, S! J( ^6 \5 I+ i9 e - // 1min
" x2 y7 W: `0 D/ B4 s7 w2 q - // ESP.deepSleep(60e6);
! y {* E9 X; K/ U1 G. K; w - ESP.deepSleep(0);
/ w( c2 s9 e$ p) S& W7 ^% @* l' H/ o - }; x7 }2 q) m9 T c: Q* x
- }( N' T0 t3 @' @, @( _, @. b
- Serial.print("\r\n");
$ Z; G: w5 m3 U. S( [0 r0 T - digitalWrite(2,1);, O* j3 Z6 N( x+ k
- Serial.print("IP address : ");9 }9 j0 e: L0 b
- Serial.println(WiFi.localIP());8 j. y T9 I, O- l$ L+ {
- server.on("/", HTTP_GET, [](){7 u$ n( R# P) |9 X+ |6 c8 L
- server.sendHeader("Connection", "close");
0 Q; L4 e5 Z* z7 @4 q! I+ P: H - server.send(200, "text/html", serverIndex);
( B. c: {1 I- m, z4 ~' f0 F2 z - });
: n, _ Y8 T0 G( S' l - server.on("/update", HTTP_POST, [](){
2 ^6 \1 j; f4 v" @( K5 u - server.sendHeader("Connection", "close");
1 ?5 X5 @' W) {; i - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 Y( h. X1 D8 B. Y5 z - ESP.restart();
7 w" e" k {7 f) R6 D - },[](){2 ?0 h( N' Z7 K( o4 B( _
- HTTPUpload& upload = server.upload();8 I' H/ R" M5 c! L0 {4 G7 q
- if(upload.status == UPLOAD_FILE_START){: e. U/ x* V/ i% Y# a/ A, O$ ? T1 D
- Serial.setDebugOutput(true);2 l& x1 j1 [) t
- Serial.printf("Update: %s\n", upload.filename.c_str());- i6 a* f) z% j8 o7 |
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ j2 k+ k$ k; O( v6 y - if(!Update.begin(maxSketchSpace)){
p( L% l! F2 q8 s0 S( B; m5 A - Update.printError(Serial);
' J1 o! @7 l7 a# S - }
- G4 C' a7 X( j) n. X6 D: l9 ^0 B - } else if(upload.status == UPLOAD_FILE_WRITE){
5 Q( w6 X2 ]% }# H: u - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% f0 X5 U; T' _% ^ - Update.printError(Serial);4 D' ^0 d1 f ~3 C
- }: T& H8 ^! T/ U. l% I6 J
- } else if(upload.status == UPLOAD_FILE_END){8 H" O& [* `- A/ e4 G1 h
- if(Update.end(true)){
5 m5 {" z: o: e& A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 X" ~4 R6 P f' {; R - } else {2 V8 o6 e7 m& o, m
- Update.printError(Serial);) n" G7 ]( v$ i) _
- }
, z" X. ^/ }0 L2 H5 E5 ^$ I - Serial.setDebugOutput(false);
( h! w0 y" ]& S4 M7 X$ ? - }) b3 E! t& v' @- x( E$ i
- yield();
8 l2 ?8 g, U; j - });9 B1 k D# }; o, g% Y8 W/ x; c1 t
- ) S l6 n3 ~1 e! }: \7 K, f- E9 F
- digitalWrite(2,0);
5 Z' I1 } z: C: }2 f* n: p - mainAction();
/ w6 R+ c* B$ K; \& K0 e - if (digitalRead(0)){* X8 U3 D- U/ f' q$ C
- ESP.deepSleep(0);
* D' U# C) u/ H6 J4 I2 U" y, W - } else {
+ ?8 L7 ]+ o6 Y# H - server.begin();
1 q( p7 L2 M4 h2 j( t! g: Q - }
0 k, g+ D9 U# L - }2 c; V \0 j* V- h8 F8 x
- void loop() {' K8 B7 ]( o A; t l! T" \$ `
- server.handleClient();
5 l6 E6 Q5 A- [8 f% F) b0 S - delay(1);
0 ~: a3 q) m* u8 H, _& @. F" V - }+ _1 `9 T' q! Q# n$ S
- String doGet(String url){4 m3 ^# n1 k# ~7 S- }
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 V6 q- F! e# p7 s! P7 d* j - HTTPClient http;+ |' M) @) P# M% }. u/ E E
- Serial.println("[HTTP] begin...");
( J1 m* a }2 o+ A8 ~+ [% d0 o3 ` - if (url.startsWith("https")) {+ ]$ B) {1 O+ ^ h+ v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& ]6 i" Y9 p9 g5 t. l7 T: i - } else {
* `% ^5 I4 q4 P - http.begin(url);) J. Y6 T" A1 z6 d% n# y
- }3 H! K0 S5 I9 S
- Serial.println("[HTTP] GET...");2 U8 e1 L e# i- K" y$ f/ [. Y
- int httpCode = http.GET();0 _- o$ X1 O: \8 J9 F! ~
- if (httpCode > 0) {
' \3 q% _% P6 H; w0 B! v/ s - Serial.printf("[HTTP] code: %d\n", httpCode);, M4 E8 \5 K+ G' k; R' i) b4 `
- if (httpCode == HTTP_CODE_OK) {, b4 w/ L1 T. |/ |6 [7 w1 @
- String payload = http.getString();7 y; D1 a6 }% G% ?! t6 p
- Serial.println(payload);, Y- A* P0 W4 B2 y; `7 A$ ]
- Serial.print("\r\n");, W$ y: D4 m9 B- t0 w
- return payload;9 K+ Y: D% ]$ t# k$ }4 `
- }
- N E4 M6 D. w' j - } else {
O1 [% L& n/ ]1 W" \ - Serial.printf("[HTTP] GET... failed, error: %s\n",
: W- s, t0 E% X# M% A' f: f - http.errorToString(httpCode).c_str());' _: w( f* x3 z9 A
- }% F* A5 n- S- ]
- http.end();
t: b6 E. A* \: ] l% e3 ] - return "";4 d, R6 w5 v3 z1 m/ ]
- }
8 ^" l' J3 P8 |1 y - }" Z5 H- U u1 e8 M0 z
- void mainAction() {) D9 A. ]# S6 m( t
- // 发送请求; {, Q) C7 j+ Q+ a
- doGet("http://google.cn");, b# O2 E# b: D9 o/ r( @, k& w
- }* \, v( K5 |3 @' D8 C
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