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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)# g+ b9 r+ Q% V& v6 I. X
- #include <ESP8266HTTPClient.h>
, ]& L3 [) b1 A) } W: j! V/ W - #include <ESP8266WiFi.h>$ v6 p6 S4 ^0 l! G) @
- #include <ESP8266WiFiMulti.h>
1 R& o+ d7 @ N - #include <ESP8266WebServer.h>
' r) O$ G$ y2 y - #include <arduino.h># a* M2 V9 \8 M" z
- ESP8266WiFiMulti WiFiMulti;
& ]: G2 j3 ^8 o0 R6 M$ E: T1 z1 k3 Z - ESP8266WebServer server(80);
1 D' i- v8 k" w; K! k1 L9 D - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 q1 t$ C" R" [) e& \' L7 b; @ - ADC_MODE(ADC_VCC);
) j% ?. E; F$ V/ k6 r5 ^ - void setup() {/ T4 Q% ^" d: F8 q; X2 o3 C
- Serial.begin(115200);
& @ U$ Q5 v0 p. Q - Serial.print("\r\n\n");9 Q; D# X) S( o/ i& p3 ?* z
- pinMode(2,OUTPUT);
, Z6 [3 k# n& F1 `6 r - // WIFI/ G6 A8 ] p5 g/ n; X2 P* {$ ]
- WiFi.mode(WIFI_STA); R& c4 j# [ S( G/ X6 M4 H: w, K
- WiFi.hostname("Sparkle");# J5 e" G) k! w! G2 c7 N4 k6 ]9 }
- WiFiMulti.addAP("wifi ssid", "wifi password");; @9 w+ E2 S! b* V* ~8 A4 B) G6 ]
- int tryNum = 15;
9 Q2 a) J" P& s) Y - Serial.print("Connect WiFi");
) [9 L( ~; K2 d' Z) ~1 s - while (WiFiMulti.run() != WL_CONNECTED) {
2 m+ K G! Z- o- a* y' i - digitalWrite(2,0);3 V. L. c3 l% }7 J3 l
- delay(200);
& e, e9 G. N: y% Y; R - digitalWrite(2,1);& H3 s* y$ N# @4 O+ }4 ]
- delay(300);; M0 L/ @! {3 s# G/ i4 N
- Serial.print(".");! d3 ]8 D d6 Q3 t' d
- tryNum--;
( F2 Y, K& o# E5 D4 {! q3 t - if (tryNum == 0) {8 U6 r0 V% O8 ]) _: z4 {
- // 1min& F1 |1 d5 D8 x9 C
- // ESP.deepSleep(60e6);! d2 ?8 q( s) R' A4 M+ x* n
- ESP.deepSleep(0);$ m& [. Z& ]2 v* I" q" ~1 |6 k n O
- }' R0 U0 h$ P5 w
- }0 D6 E/ @ ^+ O( x n6 R
- Serial.print("\r\n");
& _4 m) N' t" ?: } - digitalWrite(2,1);
9 w1 n# E" p3 y* H+ M9 [ - Serial.print("IP address : ");
0 h3 e+ s, H5 x- T* c5 w1 M - Serial.println(WiFi.localIP());
0 R `& R r/ l/ e) } - server.on("/", HTTP_GET, [](){
1 v5 D. @+ n! D- o" q1 a m - server.sendHeader("Connection", "close");6 N) K! \( P) ?% }0 [& X, _9 A
- server.send(200, "text/html", serverIndex);
8 z/ p5 \9 P! A! x% ?# | l - });
' l* Q0 F- a5 E& `2 | - server.on("/update", HTTP_POST, [](){7 n) M4 a7 d% z' O* P. i) s& @) K6 d
- server.sendHeader("Connection", "close");
" R, b/ g/ o& o; x - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% n5 s& j6 f5 M4 M8 x z9 ? - ESP.restart();
* p3 o" k/ K$ p3 E! f. l8 B. H - },[](){7 a: @) u+ f) ~
- HTTPUpload& upload = server.upload();0 d1 Q/ }- o: r/ Q6 W; {& P
- if(upload.status == UPLOAD_FILE_START){4 @' o: |3 i7 E5 Q6 Q# y7 ^0 ~% o% S
- Serial.setDebugOutput(true);+ f* T# a2 T+ p3 O' m
- Serial.printf("Update: %s\n", upload.filename.c_str());
& N0 Q, T# J+ n - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 F. J9 Z$ r5 Q" f3 ]0 t6 j
- if(!Update.begin(maxSketchSpace)){
- F8 E* x/ w% E) Y6 ^1 f9 \! p0 z6 E) } - Update.printError(Serial);
' r) {0 h& \) k8 J9 | - }9 N9 f. `- H' w% g: `% D- O, X. c
- } else if(upload.status == UPLOAD_FILE_WRITE){3 k/ w7 P, D+ @2 F6 a0 H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* {( f; r4 Y+ @; d& N - Update.printError(Serial);
& p, ^, a" A! q2 x& z/ i- m - }
! `& p+ a g+ x7 M - } else if(upload.status == UPLOAD_FILE_END){; c/ ?2 ?: a$ ]0 d
- if(Update.end(true)){
# B& k" k6 v) f' p - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. e: N4 a* r) N5 J! c1 H" Q% Q; D
- } else {; E: S* H, {% h' c- a, t8 r4 B
- Update.printError(Serial);
% q5 O( D7 q' q' N6 n5 [, k2 R - }; \& k |# R$ F0 W: p
- Serial.setDebugOutput(false);
. e3 C" E' r' b$ f: F - }
$ ?0 \6 {6 M$ O3 i5 ^" X - yield();8 Z" w; E% }: a
- });" t4 W5 Z1 `+ h
-
5 \1 A4 w/ I9 j4 [ - digitalWrite(2,0);3 m$ T0 _9 |( V/ J; S7 Q6 |
- mainAction();
+ S. J3 ^4 O" u. C# B. \ - if (digitalRead(0)){
) j/ \# y. O( J2 @4 o) q' C/ S - ESP.deepSleep(0);1 y" z, [% N9 ^# H) [# A
- } else {; J( ^% _. |" D1 x2 k
- server.begin();* n7 u1 t5 {8 @) I
- }
! B4 Z3 d( @, @' S1 K+ @: Z - }' F7 f+ H- L9 u! h% R7 t
- void loop() {) ^' \; e6 E% r; ]* M6 o( k
- server.handleClient();
8 V3 m, s& K) z& {& i( D2 C5 D - delay(1);
0 T" Z1 Y Q# ~' l# ^: m: e - }
$ e3 Y6 P5 Z9 M& `6 u1 W9 t - String doGet(String url){* D& W! ], F5 `. Z4 G$ t1 t
- if ((WiFiMulti.run() == WL_CONNECTED)) {
; y9 X3 }3 q, k - HTTPClient http;9 b3 H, O* R/ O
- Serial.println("[HTTP] begin...");
! @! ~. U; b3 \0 } - if (url.startsWith("https")) {
5 G( z" d A' U - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 z/ C( f& n p5 e' A - } else {
& B) f' d2 M3 Q; F - http.begin(url);- m, C/ U- C. N9 H+ n' x
- }' m8 u+ a9 N" `3 Y3 t
- Serial.println("[HTTP] GET...");
, k9 O5 [; W d! u, x0 ` - int httpCode = http.GET();
2 K2 S: T Y. g$ S5 G" R( S. {- @+ Q - if (httpCode > 0) {
0 b( z" }7 z" Y" l2 i* o f - Serial.printf("[HTTP] code: %d\n", httpCode);
( F5 `4 P* X _. O( t- R - if (httpCode == HTTP_CODE_OK) {/ G) V' o9 c5 K7 p
- String payload = http.getString();6 R8 x, V3 u( e
- Serial.println(payload);
; n3 X h L" Y: r G - Serial.print("\r\n");
7 e5 ]5 n+ \% A7 }0 b0 t - return payload;2 {/ W, H( Q0 e8 K. _$ O, Z% G$ K$ i
- }. o: Q2 B1 r# t. T
- } else {( ^' T3 x- Q9 J! N. I: h0 H2 t. M
- Serial.printf("[HTTP] GET... failed, error: %s\n",' n) K( V7 x6 n6 t
- http.errorToString(httpCode).c_str());
4 [. }% P* `" r$ D - }2 W; T; P$ L5 J' K& s; z
- http.end(); u2 Y& v! p3 _5 i! |
- return "";6 N/ z( ~, ?; ~; q8 |
- }
" N1 c2 u; S5 \3 [% L' L4 ^# V) _ - }
) ^& I( @1 l0 c7 @% S - void mainAction() { ]: d/ T0 M4 k/ d5 J. h
- // 发送请求
3 T; q% m; I6 `" |' p8 x; b - doGet("http://google.cn");
3 J3 D4 o: E4 D, z4 f - }3 z8 q7 W: i& G3 P: y4 X
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