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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)+ q1 F* N3 U; i
- #include <ESP8266HTTPClient.h>
- w7 w- T) v9 ^3 d5 a. U - #include <ESP8266WiFi.h>7 _, ], P3 S2 r$ L1 w3 P' l
- #include <ESP8266WiFiMulti.h>
6 h1 d; [4 g, y- s - #include <ESP8266WebServer.h>
: c8 t, X; J( C& l; J3 ^8 a) a - #include <arduino.h>
# t9 u) P) ]/ G. ` - ESP8266WiFiMulti WiFiMulti;) o! D' x6 T; \! X7 d% H' _
- ESP8266WebServer server(80);) A* m3 a0 X, C1 X1 l4 {: R1 Z4 o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 z [4 s7 H( Z+ q' g8 v0 O/ R
- ADC_MODE(ADC_VCC);2 p# [, L) X( Z( D2 c" o
- void setup() {
0 `8 n2 e4 H9 \9 j - Serial.begin(115200);
' X1 v8 P' e. E - Serial.print("\r\n\n");- \. y8 h7 ~; D- Z8 g
- pinMode(2,OUTPUT);
: W( b M [5 f - // WIFI, k: H/ G* |. x m# [: {. k
- WiFi.mode(WIFI_STA);
2 e* T3 ?5 J9 \ - WiFi.hostname("Sparkle");
& }2 O* w2 i. e- u( V, b6 { - WiFiMulti.addAP("wifi ssid", "wifi password");3 i$ a0 t% d) G5 D6 N. T
- int tryNum = 15;
4 z& i/ F+ a) M - Serial.print("Connect WiFi");
( f6 I8 |# D6 O) M: x8 E - while (WiFiMulti.run() != WL_CONNECTED) {
% r/ y6 ]- ~- C0 a - digitalWrite(2,0);
/ I3 u' \4 K0 e- G/ b! v& h% B - delay(200);
P+ I# ^" g+ M, R, l) v2 B6 T+ i" | - digitalWrite(2,1);! ~& t: R! T- X K9 ^
- delay(300);
& T D4 w' a- g( z - Serial.print(".");" i7 b) u, c3 ^: s! C1 [) B
- tryNum--;# y* N: ^% t# {3 y) I
- if (tryNum == 0) {
8 x$ q$ u" B1 X# d - // 1min: `/ Y q9 X1 f4 t9 x$ H9 I. |2 z
- // ESP.deepSleep(60e6);4 q, {1 z( s9 C; a
- ESP.deepSleep(0);
6 _" b0 Q; O, _* i _. b - }
* ^- E( u f8 f. R( r - }- i/ ~1 C9 s1 D. T* s, R4 [7 s
- Serial.print("\r\n");
% Y( A, x+ H4 _% j9 O - digitalWrite(2,1);7 T; z4 V, ^! Q! F
- Serial.print("IP address : ");
r/ U# {* w; d/ V - Serial.println(WiFi.localIP());
; @4 F' n$ o8 \2 V% T3 C - server.on("/", HTTP_GET, [](){: \- c0 y& a! O' d3 z- j
- server.sendHeader("Connection", "close");: L6 B# Y: }& F& z
- server.send(200, "text/html", serverIndex);
0 t* P7 L: V/ a* m% Z% k: j* P: S - });
! U7 J: d, _& H+ Q- a; X - server.on("/update", HTTP_POST, [](){
s* w. l9 S# Z - server.sendHeader("Connection", "close");
. J: p1 S2 U9 ~ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 S8 h" ?0 i( t4 O/ a - ESP.restart();6 z' u# M, \7 C' ^# I; R
- },[](){
2 F+ o$ I9 t6 Z* D1 {3 r* L - HTTPUpload& upload = server.upload();2 b6 x# l# [. H: A8 ^! w. L
- if(upload.status == UPLOAD_FILE_START){
) T+ ~" k T7 K$ R. ^0 g0 ?) M - Serial.setDebugOutput(true);, L- V+ U# \$ J, S1 d+ y, c. c* X- e
- Serial.printf("Update: %s\n", upload.filename.c_str());6 }: ]) }3 `# p9 m2 v6 ?) [) X/ {8 d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, a$ r* J2 N9 y# c2 B1 m, ~$ z - if(!Update.begin(maxSketchSpace)){; P) R4 ]: p, \
- Update.printError(Serial);5 q) E5 |6 |& l5 i
- }
& L& s3 D5 d2 } - } else if(upload.status == UPLOAD_FILE_WRITE){
& r. P4 D( {% v6 v( d" I% ?8 J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 K( B* E; }) s* C+ B! K5 @8 |( z+ V f - Update.printError(Serial);
3 }' e% ~% ]5 W4 O. B, u6 U. u - }
4 N1 E* u [+ {2 M - } else if(upload.status == UPLOAD_FILE_END){ o/ }. u6 D! w( D4 F- r/ H: `: D
- if(Update.end(true)){
. Q2 l) x$ P$ d$ x- F9 N - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 h! c% _/ p* s7 K. e' X4 A
- } else {3 ^( J: D* w& l3 h- R" V& r
- Update.printError(Serial);: f4 X$ }0 ]. P& k7 @
- }" Q! n# G7 A4 h# S4 b) C( _2 `
- Serial.setDebugOutput(false);
$ [- C- G; @: Z - }
3 ^1 W- ^+ ^" z# K# c y - yield();
- d; r$ }0 X' |3 m2 r! X- Q) a& S - });: V/ ^4 \) T3 b" ]6 S
-
3 X5 i/ S# s+ ?' k# k$ U; p - digitalWrite(2,0);
7 t. P% ~1 }5 D2 M& o/ Q. d: A, q - mainAction();! i+ J* x8 t+ ?
- if (digitalRead(0)){
+ m6 p9 {4 K% R$ W - ESP.deepSleep(0);; l# J* `$ W7 X' `& x
- } else {2 \4 I# \) h9 D1 u) ~
- server.begin();0 n: X4 l! C% j, ^6 X' n
- }9 r9 [* ~; `& j8 R! l' p r
- }
1 {1 b9 i, F, F' d4 P6 `1 P - void loop() {
4 L; N# ?/ j; }3 d% M% A - server.handleClient();
" M( o$ ~6 {( v i- h6 M2 i - delay(1);
2 }2 y& p+ ?2 {, A& T5 F - }
; G$ i) c+ {: V- @+ e# S - String doGet(String url){3 g) s& h- C* o9 r# u
- if ((WiFiMulti.run() == WL_CONNECTED)) {% R$ Q" Z+ I) ?; s% s2 C4 g* q
- HTTPClient http;
8 X t* \$ D7 G" A5 L - Serial.println("[HTTP] begin...");( M3 {1 K ?- z( z. M1 H: ]
- if (url.startsWith("https")) {
! \8 e( W* e7 Y3 B4 k2 ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% s5 l7 i+ G n( z! j - } else {
7 P* n9 W( Z4 X" ]* Y - http.begin(url);
. ~" _3 I* ]* y* a9 j8 j - }
6 w1 N1 k% k- r* C/ e0 R. c - Serial.println("[HTTP] GET...");/ f3 V: @% w: n; z g4 N% y
- int httpCode = http.GET();
4 w4 o) Z- c/ [9 @, }& U$ t - if (httpCode > 0) {
0 I7 N! D0 u T- X. ? - Serial.printf("[HTTP] code: %d\n", httpCode);
0 {' t( U& a. `% a7 C - if (httpCode == HTTP_CODE_OK) {
" n* \0 [& g. q8 ^1 O - String payload = http.getString();
: F i2 ^" m/ S: v* e9 L - Serial.println(payload);
' s( a1 y! ~/ n! u' S7 l+ H3 T - Serial.print("\r\n");
3 H5 F. k! [7 U# {1 j# q - return payload;
]8 O Z9 k6 k- Q s - }
7 k8 s7 d& c6 c0 ]0 T" i4 X - } else {
* M( c1 O9 R6 ^7 ]3 s - Serial.printf("[HTTP] GET... failed, error: %s\n",
: G4 R* _: I" [0 f7 V - http.errorToString(httpCode).c_str());
" k9 n$ @% X3 e- ^ - }
5 B) q# [( f: v9 ^3 \ - http.end();2 f8 Q4 [( ]# i" ` K! `8 x
- return "";
: o/ @" h) B* n6 B* T - }
2 X$ N& Y* V2 E0 v* u - }
- s) _: z( V! }; p" Z8 { - void mainAction() {
9 X, ~% T; P' |8 P, E7 j) y - // 发送请求4 i: @7 p7 Q: w& [
- doGet("http://google.cn");' v, F' @. @* B. r4 }5 A
- }& ?) h& M, ]0 m7 ]
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