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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)8 f% c2 {( s1 C! v* q+ O
- #include <ESP8266HTTPClient.h>1 v/ H! l$ a8 E% W& j) f
- #include <ESP8266WiFi.h>
' h/ U3 L. O0 _# v - #include <ESP8266WiFiMulti.h>9 Q4 B3 w/ z2 m: ~# V! w( F% @
- #include <ESP8266WebServer.h>
: j0 }: u+ n6 O# A3 o7 l. H* l' ^ - #include <arduino.h>
+ Y1 S" Q2 W% E" T# V5 n) j0 ` - ESP8266WiFiMulti WiFiMulti;/ G8 y+ S( K! b8 {: s2 W$ y6 [0 N l
- ESP8266WebServer server(80);: B0 l( B4 `; v5 I, Y6 j
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* m1 y0 o" I6 K4 _
- ADC_MODE(ADC_VCC);2 D4 G5 @& ~4 r! g) ?, h# G
- void setup() {& L% x! _8 @+ N* c
- Serial.begin(115200);
) j \; `) v. K - Serial.print("\r\n\n");4 O; U* F$ B4 u4 h" W$ P
- pinMode(2,OUTPUT);
% N1 K3 I+ j, N" M1 T - // WIFI B9 U: c: V+ N% ]% N
- WiFi.mode(WIFI_STA);
5 M& {; I [ x- b# } - WiFi.hostname("Sparkle");
7 v( ]! W1 ]2 ` c - WiFiMulti.addAP("wifi ssid", "wifi password");
6 ~) \ G% R' v) h9 _) k+ n7 P - int tryNum = 15;% Z" O) J) R4 p9 B
- Serial.print("Connect WiFi");% w! p- m6 C; g M, ~* D
- while (WiFiMulti.run() != WL_CONNECTED) {" l8 M/ E) ]5 F( |- b
- digitalWrite(2,0);( y3 M0 [/ L) Y/ d8 [' H, a. ?
- delay(200);. B, S/ q" |4 e1 J! C* C
- digitalWrite(2,1);
" u( v3 @& i A# b - delay(300);7 u ?* U6 D+ i" @$ y d
- Serial.print(".");( a$ L; A! ?8 ]; T
- tryNum--;
9 T. V- l: T+ N- A4 e; K: t# c6 x# [ - if (tryNum == 0) {% \4 m5 F# t& p( m
- // 1min
2 c& h% {% E; Y5 y" x' l6 K+ }. w - // ESP.deepSleep(60e6);; e% q( _7 S) F
- ESP.deepSleep(0);3 i2 I& Q! Y2 I6 q
- }
" O: p, t0 n6 P - }5 y/ { X- P. n6 g
- Serial.print("\r\n");0 ^! r! ]2 ^% a. G$ F: a
- digitalWrite(2,1);4 u. A5 Y- v1 F5 O( x
- Serial.print("IP address : ");
! U7 P4 D. W- ]( ~6 D t, Q - Serial.println(WiFi.localIP());
' N x# V* T: A - server.on("/", HTTP_GET, [](){/ C5 k, z. s$ z' Y. l- ?
- server.sendHeader("Connection", "close");( {4 [) ~" r/ z- i- K, y0 B8 E" Y
- server.send(200, "text/html", serverIndex);
- G' ~9 ]1 i" ]' W+ ~ - });
2 _/ _- w( H* _2 J' @ - server.on("/update", HTTP_POST, [](){/ r. v) V' r* I
- server.sendHeader("Connection", "close");
$ D% ]. ~1 c1 N7 L1 z. M - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ M, z% ]8 g" `3 R, |8 `; t" }
- ESP.restart();
( t2 m% R- l, E% z1 l) s# Z; q - },[](){
5 l; W8 O0 F, b+ L2 w1 t - HTTPUpload& upload = server.upload();
( j$ I( J9 e( Y0 A$ |& m - if(upload.status == UPLOAD_FILE_START){8 C$ s3 U9 k/ o
- Serial.setDebugOutput(true);
& l1 {# F( C9 n1 w+ S - Serial.printf("Update: %s\n", upload.filename.c_str());
- y+ o% J6 V* v! x - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* V+ i' y3 K+ D% J4 w - if(!Update.begin(maxSketchSpace)){
/ ]' y( X" c5 Q1 v, y, D; W - Update.printError(Serial);2 f' x) A6 Y% i: i% [
- }1 M6 Y- e4 K3 D! C1 ~" E
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ k Y4 c7 _0 b2 ]2 Q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. A% W! U# ^" c, G% d+ M4 k
- Update.printError(Serial);) j& v, c q0 l5 E0 g; j% o) V* ~3 G
- }
: r. A1 g% f: I8 p/ t - } else if(upload.status == UPLOAD_FILE_END){' y4 _2 V. J4 Z+ s2 M& P7 g
- if(Update.end(true)){
. j$ L1 n( Q/ X - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 k; _4 ]9 Q' _5 M - } else {, x0 \* R3 b }! f
- Update.printError(Serial);
) |) `7 \. C$ @7 Z P% \ - }
6 y+ w2 B% u; N! J5 _ - Serial.setDebugOutput(false);
( u0 e5 q( T# w - }
2 L' k: n9 o8 G2 i - yield();
! L- k/ M/ U& \1 y1 ?" w6 n Y - });$ O. s6 i' Q! O' ^' @" L: V4 u
-
, R$ K' N) r. {1 `9 y/ Q9 N - digitalWrite(2,0); r/ B" o! t: k. C/ g. C
- mainAction();
! D1 A% z) v7 I1 f+ B/ d - if (digitalRead(0)){. _$ y* p }9 @+ z
- ESP.deepSleep(0);" _, Z! x; h9 n/ o& `
- } else {
* H0 Z( m- K0 M" c1 P! F6 x# f2 I - server.begin();
7 g7 h* Y# e, F" I- m! u+ p - }
3 L, z" O$ i2 i! a; S: I: h - }
) U; J* `7 H0 w0 o5 D* j - void loop() {
2 A& T! p+ t* t9 _, m, r6 R - server.handleClient();7 `6 h1 S5 R5 Z! m. k9 P& I( K( v
- delay(1);
) d1 D, q" H/ z1 g9 ]0 x2 M - }
6 O9 k: q8 [4 I0 c+ I* F- X; K& B - String doGet(String url){
$ A* i7 }' [# B3 Z* v5 a& y+ ^ - if ((WiFiMulti.run() == WL_CONNECTED)) {
6 a5 T) z' d) f - HTTPClient http;* f# q& [ R4 E' c& o, X" S* _
- Serial.println("[HTTP] begin...");+ ?5 O- A+ D6 A# [& K. p4 W
- if (url.startsWith("https")) {
# X0 r; Z2 w8 Q) P( _6 Z: w7 J - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" |/ W; I1 X4 Q9 e/ H t
- } else {1 S: N6 U0 r- u# Z+ X
- http.begin(url);
3 C% ]) ~/ v! ?! o3 {4 W+ y9 n - }4 Y4 l& A7 j) Z+ `/ D
- Serial.println("[HTTP] GET...");. e+ B4 `' S/ H* L; {- H8 q
- int httpCode = http.GET();6 J+ h+ f! [) d+ }; q
- if (httpCode > 0) {
$ q% a3 H7 c. e - Serial.printf("[HTTP] code: %d\n", httpCode);
% }6 Z! {% R m3 b* _ - if (httpCode == HTTP_CODE_OK) {2 f- Z: S6 F' a) P. J& f
- String payload = http.getString();
4 Y- G# @8 u$ v8 l# Y7 { g1 G - Serial.println(payload);# ~, u1 s" q4 s" y8 I$ W- B D
- Serial.print("\r\n");
$ c* r7 ]; I0 }7 k& K7 x9 o2 w - return payload;
2 a' i+ k+ K6 a0 L/ S" K - }
0 {- k( _& ]! _8 s2 H; G. M/ a4 H! k - } else {
1 O+ m5 B/ |$ \( f }+ a/ q - Serial.printf("[HTTP] GET... failed, error: %s\n",
" k& a, z# @* g! E1 Z& i - http.errorToString(httpCode).c_str());
! ^- |5 N: `6 U$ P& ~ n f - }7 C& r) w; t0 X$ q9 @. u1 }
- http.end();+ J! o8 W4 i9 ~: [# X
- return "";
5 M Q1 S4 O% X4 q( l$ n - }$ s" H7 U) Q, D( H# R
- }' n, O# R- o# y: ], Z$ D9 y
- void mainAction() {) d9 { Q( p5 Z
- // 发送请求7 v0 B+ n, c1 g; }, t
- doGet("http://google.cn");
2 y( I9 U8 R4 s, l: \, a - }
9 t0 r# k7 o& q, M* ?- d
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