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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)! m4 v0 b5 g6 o6 F7 l
- #include <ESP8266HTTPClient.h>
" ? m, v" L, |9 q4 k! h - #include <ESP8266WiFi.h>$ ^8 n) q$ H3 ~4 F
- #include <ESP8266WiFiMulti.h>
; Q9 ^5 f/ _1 y) r& w9 | - #include <ESP8266WebServer.h>7 z) @9 D' i5 T3 L6 T
- #include <arduino.h>
/ m# T- M- [' X/ m - ESP8266WiFiMulti WiFiMulti;
* V" y# i1 _) U - ESP8266WebServer server(80);
( _# ~# c! i+ Q# R2 s2 O4 Q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 ~: v6 I" ]4 u, b( C - ADC_MODE(ADC_VCC);) Y1 E; @8 ~# g$ k& M. B" o
- void setup() {
$ ], [8 e, w' K# S5 p8 G - Serial.begin(115200);
' B6 I- L+ C* Z" @ - Serial.print("\r\n\n");+ s$ D* l, b: O' c0 R+ ?% x
- pinMode(2,OUTPUT);6 v) B3 m' z9 Q0 y' c( V
- // WIFI" p. n# O% c6 J
- WiFi.mode(WIFI_STA);
8 f) `& e+ r4 ~8 N3 k" V1 f - WiFi.hostname("Sparkle");
/ U3 ~( J. s& M' ~2 N - WiFiMulti.addAP("wifi ssid", "wifi password");- _0 f- d' h( w7 y( Q
- int tryNum = 15;0 z7 ` t# a; k a
- Serial.print("Connect WiFi");5 G, G0 G! g7 h% V1 ~! Y
- while (WiFiMulti.run() != WL_CONNECTED) {0 z6 D g/ n& e3 s6 W
- digitalWrite(2,0);) |& g+ S" i) h+ x2 U9 }( v; c
- delay(200);
k: v: O% o1 s# W. q - digitalWrite(2,1);
" D% T, I$ ]) j8 N* ^ - delay(300);+ i% u D6 c/ p1 @
- Serial.print(".");* q) q5 `, j' i
- tryNum--;
% m- Q A- D* ^- y( c+ K$ f - if (tryNum == 0) {' d [' z9 i8 ]
- // 1min5 U+ o E: m) S6 q& i
- // ESP.deepSleep(60e6);4 o( _& H. S9 G x: ^* f/ V% s
- ESP.deepSleep(0);3 i; ^) T8 f2 z# ]7 j
- }' l: b- b: J6 o8 \6 m2 A
- }
& ^; p& V( w) \+ K1 E - Serial.print("\r\n");
) J5 X* r, F% c# F3 | - digitalWrite(2,1);
4 |& l. U2 W8 L) m - Serial.print("IP address : ");
4 g s" B4 X1 K! I" |. E; L6 h; q - Serial.println(WiFi.localIP());
8 }6 P- `4 c0 C3 |. ]" K% Y2 y - server.on("/", HTTP_GET, [](){- b5 w5 i; A5 l
- server.sendHeader("Connection", "close");
# I& J" ^3 v! n0 e& ?/ h6 J; z - server.send(200, "text/html", serverIndex);
/ B8 y2 x$ l/ E8 o# E) b - });
% w5 T, W. A0 x$ k6 E - server.on("/update", HTTP_POST, [](){
* a# }8 R' S5 i" W' h" ` - server.sendHeader("Connection", "close");6 R3 K5 _5 ]0 Y1 n5 M
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 N7 k- `( Y, |' Z4 X, z5 H+ u
- ESP.restart();
, w3 k& _ N4 s - },[](){
2 g; [5 ^/ h6 l8 F9 [. z" S: r) k& _ - HTTPUpload& upload = server.upload();+ ]$ i3 C+ K6 A/ P6 d: O# {
- if(upload.status == UPLOAD_FILE_START){3 J/ ^$ U* w# p$ d1 H R
- Serial.setDebugOutput(true);$ E8 ~- q& _5 o& W
- Serial.printf("Update: %s\n", upload.filename.c_str());
V( Q$ _$ T8 D: b% \ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ n* ]! z" k$ m - if(!Update.begin(maxSketchSpace)){
% t$ s5 `: O; I+ M+ L g+ g - Update.printError(Serial);2 q( T0 F+ j A, n. [, o. V
- }
( [9 {7 O& |6 R - } else if(upload.status == UPLOAD_FILE_WRITE){$ J [% p$ R% C5 ^; p, d
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; T7 }9 P' l2 w- g
- Update.printError(Serial);
; U6 \ `" v9 B6 k: p6 @8 t - }
4 \* U9 w7 f4 Z o% R% L) N% \' \9 [ - } else if(upload.status == UPLOAD_FILE_END){
5 B2 W# H9 O" I1 j5 W2 h: i" F/ Z - if(Update.end(true)){
$ v, G4 j" S w, S" Q& g$ P - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- o! y# t+ s* R& ^# w! x
- } else {7 }$ S, U. W. N! D/ G
- Update.printError(Serial);. {2 A; W5 Q2 X% ?7 s* Q
- }
5 z. R+ W V( b" [ ` - Serial.setDebugOutput(false);: i% X6 f( A& v3 h2 ]% D8 j; r
- }
& L4 T6 ?5 X0 L% C% b: _) g - yield();; a4 O, E; R/ }" `0 [- |; J
- });' x- ?8 [9 Y, b& L- s, S
- . B; r/ Q9 [: i% `
- digitalWrite(2,0);3 S( c. e' \$ P- Q3 O
- mainAction();4 E' `5 o. q( [ |
- if (digitalRead(0)){
( w) d2 }5 }- R. Z - ESP.deepSleep(0);
# t$ M8 k. U- o6 B/ T9 N7 { - } else {9 w7 R+ c# T. Y8 K
- server.begin();6 m- t! ~# F0 F" k
- }: F) W+ O& s5 b! X
- }* H" S2 p6 a/ y2 h3 X
- void loop() {
2 g! { J k2 W! C" `( N - server.handleClient();$ l0 ?# B; g6 Y; ]1 x
- delay(1);+ ]$ m7 u) P: ^' p) E8 U
- }, k; H* d3 y1 V0 j1 ?9 p8 J
- String doGet(String url){- l" X* C# N9 m5 b7 \7 X3 m# u% K; s
- if ((WiFiMulti.run() == WL_CONNECTED)) {
% ~9 V3 n0 ?7 h) F' o+ d - HTTPClient http;3 Z4 q6 c1 N( U8 o$ F( R
- Serial.println("[HTTP] begin...");
4 C7 Q: p$ f/ @ k8 s - if (url.startsWith("https")) {
/ A2 D$ r/ C( x* |( T2 T: Z. |" F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& u- o1 `) o ]) o6 @) c" Y - } else {
! [. O* V% Q/ `) X7 ` - http.begin(url);
4 [: H i% }# c8 G* P+ p - }; q3 C( R3 L6 A; O: L$ n" U
- Serial.println("[HTTP] GET...");
4 e0 V$ B( k; l( E1 _5 `' T- F8 n - int httpCode = http.GET();
0 ~: e( F& K4 H( b3 ` - if (httpCode > 0) {% }( ]; u$ [, x9 s& z, t/ _& I
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 p( G1 T7 W7 O" K5 l8 _" g+ ~ - if (httpCode == HTTP_CODE_OK) {# j5 m6 @ V9 } p& k% S
- String payload = http.getString();$ D( I; L. `: c1 O
- Serial.println(payload);, R- a3 W0 L5 Z
- Serial.print("\r\n");
8 f. V9 W" M# k2 u; a& }0 a - return payload;
8 \( E+ k) _5 d/ _9 c p - }
& Q' v Y ^" v7 f - } else {
6 T' q c( }# A B - Serial.printf("[HTTP] GET... failed, error: %s\n",5 z8 T% e) d6 _0 g7 [
- http.errorToString(httpCode).c_str());$ \3 p1 {& F' y
- }" G) O4 o0 w1 f1 K6 Z9 ~2 d1 _
- http.end();
6 g$ F' ~% r! H# [ - return "";1 {* ]( Y/ M9 s; Y( O+ u# i5 B
- }2 m0 q6 d2 s9 d) C. o3 Z
- }
/ P+ ?( W( O* l+ Z - void mainAction() {
5 A/ K7 `9 Y6 {& k) X. W - // 发送请求2 u! U! }+ |$ f# z; L+ `9 b
- doGet("http://google.cn");- @8 x2 l8 k( D4 a( ]
- }2 P# C4 j/ o8 D; S
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