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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)! u3 f& } P' K8 F8 H) P
- #include <ESP8266HTTPClient.h>
. S, t V3 H) u5 k( A - #include <ESP8266WiFi.h>! ^3 k. A7 D+ \/ ?
- #include <ESP8266WiFiMulti.h>
2 u7 ^8 _ z" v0 N. _- w - #include <ESP8266WebServer.h>$ ]6 x7 s4 y6 C6 U8 e$ s5 e7 `
- #include <arduino.h>
O; K4 e/ v5 j6 v$ A, A% | - ESP8266WiFiMulti WiFiMulti;
0 L% M5 z8 _9 @& @& J) p - ESP8266WebServer server(80);& e/ D- C( E% D6 b
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: w- f4 S1 z( Z, O9 ~6 l! p9 s1 n
- ADC_MODE(ADC_VCC);
; r4 k9 u6 l! Y/ o. G& S# R) Z - void setup() {3 H, y: e$ E* r4 H8 Z
- Serial.begin(115200);: a9 r. j1 c. k- K* \
- Serial.print("\r\n\n");
' u4 a8 v% Q+ g/ [8 U: Q1 P2 Y - pinMode(2,OUTPUT);2 \4 c" X& J9 ~1 M) d( [, o
- // WIFI! g" J- z' D" _2 Z
- WiFi.mode(WIFI_STA);
2 x3 {9 u0 W5 w% Y$ n - WiFi.hostname("Sparkle");
! X2 q; C; U: P- ] - WiFiMulti.addAP("wifi ssid", "wifi password");9 Y8 _. T2 Y; u
- int tryNum = 15;
0 t) U0 [8 s8 N - Serial.print("Connect WiFi");& j4 w4 o& g& Y2 V( |5 P
- while (WiFiMulti.run() != WL_CONNECTED) {
* v; K* {% R' p - digitalWrite(2,0);+ S& m' z* l' l; d. p0 b" o5 W
- delay(200);4 N5 @/ t% ~" Z$ [, |( m, _
- digitalWrite(2,1);
! m, } s, d. [/ j! s - delay(300);
; ^3 @% X- V1 H - Serial.print(".");8 }0 p3 T% l2 o V. q8 v
- tryNum--;) I$ Z1 S$ R# H& p
- if (tryNum == 0) {
* @& g3 i! w: r# L; z - // 1min
) y0 d3 Z4 g5 [' `* H: B3 U - // ESP.deepSleep(60e6);
2 d) ~4 P! n, d" Y( F8 I9 E - ESP.deepSleep(0);2 `" p( ?* k, a- K0 o) @# p
- }6 h) q2 Y: r6 c" _" O5 Z7 ?( t+ [
- }) ]( q# L7 T+ A7 L2 v9 I) b
- Serial.print("\r\n");
, }# S9 u; f3 d" v9 f - digitalWrite(2,1);
3 `0 g2 i& p( a( ~6 U - Serial.print("IP address : ");
- _) v% e5 P6 h6 p' W - Serial.println(WiFi.localIP());
, U2 y4 D" |- s - server.on("/", HTTP_GET, [](){
- ~& o* K4 x3 }, J# u; f - server.sendHeader("Connection", "close");2 ^7 D; R+ _0 a( `+ p$ J
- server.send(200, "text/html", serverIndex);
& l' @9 x; z" ?; A- J6 S5 S( x* g - });
# L1 i _ m- v) ^+ P; @: w - server.on("/update", HTTP_POST, [](){5 A1 L5 ?" W0 j; n- S' F1 _1 D
- server.sendHeader("Connection", "close");
8 f8 H) O6 e6 \0 p2 X - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, _2 T$ l' N- e - ESP.restart();* D% n, r) }) @( w
- },[](){
: [- I! e. k$ B; P - HTTPUpload& upload = server.upload();
' K' l) t# I; j# b, z - if(upload.status == UPLOAD_FILE_START){
4 s! |& z- p3 @! M - Serial.setDebugOutput(true);
1 i, }+ x# G" F) N4 J7 u - Serial.printf("Update: %s\n", upload.filename.c_str());
0 S7 F K1 y* b7 | - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 ]. b. s1 M/ w - if(!Update.begin(maxSketchSpace)){4 T; [7 m, c$ B# N
- Update.printError(Serial);
7 D/ s) f9 l" C2 e! Y# B+ B& z - }% {: s7 j; v4 V. L1 @
- } else if(upload.status == UPLOAD_FILE_WRITE){* X$ S9 v5 R; @) }' p1 P8 ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 t1 C( h+ H5 T, ]! T: m: \ - Update.printError(Serial);
" n9 p) d& G+ n - }
h# n9 D. U! H1 \ - } else if(upload.status == UPLOAD_FILE_END){
) o9 K0 J/ r; t1 w' a8 E - if(Update.end(true)){% m) B" ?8 k1 z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 P$ _( {7 T% `8 i - } else {- `4 D* u* @& b- S
- Update.printError(Serial);
% ^6 m" j( q; {# R3 L4 U. R - }3 f, b4 N! x# x
- Serial.setDebugOutput(false);' ^1 m) v- L/ C* `
- }/ R s; m; R& v* K! Y) @: q& R
- yield();" H2 k c9 G$ ?! M
- });* ]9 f. ?. f. i# g3 }! ^
-
! g3 p p! L4 W; s! s - digitalWrite(2,0);( T( z. K& h* {
- mainAction();
2 p( ?7 q- S+ X9 H: O2 _8 W - if (digitalRead(0)){ S, `) `* `6 a7 N! z5 ^" N
- ESP.deepSleep(0);
9 T3 Q G' V& Z" _3 _ - } else {9 o1 e4 y6 _$ j. v( I( `
- server.begin();( d1 n+ M7 i0 O4 b9 \
- }
; @5 k+ H J: Y0 f - }$ N1 H! z1 Q8 G5 Z, [+ B) O
- void loop() {
* f' d" n) d& r1 p- h8 R - server.handleClient();% n h8 n! }8 z
- delay(1); \3 M4 H4 U4 T. o" ]
- }5 x+ @% t: ^# D2 a9 g+ K( o* m
- String doGet(String url){
; O, C$ ?+ F" L) j) P2 K - if ((WiFiMulti.run() == WL_CONNECTED)) {
1 y& F% N$ r; v& D+ t: F& }9 T: A - HTTPClient http;
/ S# \" g/ U9 F- e6 O - Serial.println("[HTTP] begin...");
' p$ v4 P2 y& x' b - if (url.startsWith("https")) {
6 r4 j2 Y/ v6 b) e4 n0 E7 X2 V2 Q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 O! f/ s/ q ^# P$ R - } else {
; Z2 y) y s) s1 J; T: z - http.begin(url);
# e- u4 r# D4 O) Y% H - }
, A6 J5 \) q" ^9 ?7 c0 m, [, b - Serial.println("[HTTP] GET...");* S. _' S' b! W; N
- int httpCode = http.GET();
9 M3 ?" v; s% g5 _. z$ d! H6 q! } - if (httpCode > 0) {
2 @$ O% n) L! r2 Q - Serial.printf("[HTTP] code: %d\n", httpCode);1 v3 c* s, K* S, {; q+ p2 [: }; y5 O
- if (httpCode == HTTP_CODE_OK) {4 _; V! A; `" S
- String payload = http.getString();
" P( D ^* d+ Z ^% h2 @ - Serial.println(payload);! r5 M3 ^" I% N2 M8 V. V
- Serial.print("\r\n");
4 Z, O' O. }, ?+ I1 |. H - return payload;
% A6 ~/ m* M' f) q, c$ p" Y - }( K. F3 @7 f, B$ C9 O( W
- } else {
+ x; b' `4 [- `5 o6 Q - Serial.printf("[HTTP] GET... failed, error: %s\n",
" _+ G9 U5 w" T0 f" E, p - http.errorToString(httpCode).c_str());
% @8 Z8 N" u$ v* _' t - }3 x. Y3 X+ C- G+ G
- http.end();
$ B) u. p* o$ x4 i2 u3 \( w6 g, C - return "";
. o$ b9 R% Z; L$ q8 k. } - } c' }5 J2 V+ L) S/ C
- }/ T: ~) W8 s; R. g% `" o7 E$ q
- void mainAction() {
4 [4 ^+ h' V8 k2 [# g - // 发送请求% d7 @9 `. t& V, S% u
- doGet("http://google.cn");
6 ^% P& H T3 J% l# { - }
! v4 N% K/ f7 M, ?
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