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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)
# j. u1 B/ [) B3 B+ r! T; _- #include <ESP8266HTTPClient.h>
. w9 o4 c, g+ C2 H - #include <ESP8266WiFi.h>
: o2 H* [! T) ?6 a: ]* a- N7 T. G - #include <ESP8266WiFiMulti.h>$ N4 h" {( @) R- J* t: [0 G" O) l- k
- #include <ESP8266WebServer.h>
" B* ]6 [$ F2 B8 F% B - #include <arduino.h>
, b) g; }" A- _! L - ESP8266WiFiMulti WiFiMulti;
5 M( I/ A7 f! Y) j6 q - ESP8266WebServer server(80);4 f5 E: G) V; G" `( m9 e
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: A& {2 I9 A* `2 G& H# i
- ADC_MODE(ADC_VCC);
6 Q' P/ X/ L! {. s5 S - void setup() {
- F7 h7 J& d& R! X8 P - Serial.begin(115200);) v' Q/ I! J" J' A5 I9 T# N7 C
- Serial.print("\r\n\n");
( ?4 O5 ~7 f7 n" T) G7 O - pinMode(2,OUTPUT);
6 b9 V% E* i3 `- i- } `5 z - // WIFI
! I" K! w5 h- [& Y) E! J3 r8 g4 }8 D - WiFi.mode(WIFI_STA);
% A( R7 Q+ I( q# x4 v - WiFi.hostname("Sparkle");
- ~( C. A0 E' d6 c8 _ - WiFiMulti.addAP("wifi ssid", "wifi password");
4 f1 i; m' D3 ? t' @ - int tryNum = 15;# S) n8 `0 `. t1 C
- Serial.print("Connect WiFi");
1 M5 u, J, a7 y& Z1 B - while (WiFiMulti.run() != WL_CONNECTED) {
! l/ ]$ |4 o9 B - digitalWrite(2,0);
$ S- V. I, _1 `! ~4 X0 [; _ - delay(200);2 X n6 {4 C0 y
- digitalWrite(2,1);+ ^5 q5 }2 p7 @6 S& r( j: q
- delay(300);6 [( n0 l8 X* T, X0 d) C
- Serial.print(".");
4 p( D: [( i$ B. f, ^: P r4 u - tryNum--;0 R- R6 x5 U& j& |
- if (tryNum == 0) {' d4 G. [$ J6 X& f
- // 1min
: m8 C9 P$ j! Y - // ESP.deepSleep(60e6);$ ?3 h3 H" x, }
- ESP.deepSleep(0);1 m$ L2 n1 [3 O- {2 M1 B \
- }
, [, `8 T- b3 H& A' V" E - }7 i( R+ o9 _9 t
- Serial.print("\r\n");
2 C% y8 r3 B$ p, L, ~ - digitalWrite(2,1);5 u! A/ y; s# e& ~8 w' E
- Serial.print("IP address : ");/ z2 _+ S" E5 h% M
- Serial.println(WiFi.localIP());: e0 m/ ~1 l6 l( C- i
- server.on("/", HTTP_GET, [](){8 D) \4 u+ i, M& W/ P6 \. t
- server.sendHeader("Connection", "close");
: p8 A/ ?6 ` [, ?8 [3 b - server.send(200, "text/html", serverIndex);
$ i0 \. j9 O/ p2 K( R( x1 ] - });3 D. G9 U% H! |& ]% E+ ^) D4 X+ L
- server.on("/update", HTTP_POST, [](){* ^8 t r4 [/ J! X+ S9 y
- server.sendHeader("Connection", "close");$ o$ `$ W) m$ m0 d- A3 I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& O/ e: f4 g) X; ? - ESP.restart();5 @5 g5 @5 P; ]! t
- },[](){; t+ a$ C" U7 c' } c5 |
- HTTPUpload& upload = server.upload();
& R$ j4 |9 V- {/ W. n1 z( O - if(upload.status == UPLOAD_FILE_START){& T) E. h; z2 V. Z
- Serial.setDebugOutput(true); e S! `: ^+ S- y
- Serial.printf("Update: %s\n", upload.filename.c_str());
! \3 c/ I7 ~- h5 }. _, E* K7 o3 a# ^ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; R3 r* k, X" Y' _( w3 t
- if(!Update.begin(maxSketchSpace)){6 J. q- h& }$ B* e
- Update.printError(Serial);
- p: M& ?) k5 p. C9 v" H8 r0 b+ t - }0 Y0 i% T3 ?+ W+ M& u7 ^
- } else if(upload.status == UPLOAD_FILE_WRITE){
* n5 g! Y5 f7 a7 X( l1 x+ E& C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& Z. C; F$ ~+ W6 ^
- Update.printError(Serial);6 o4 x! C0 R! X e3 l. C6 ^/ Q
- }
! O9 F' P) N# ?- E; V5 R+ V9 X2 k - } else if(upload.status == UPLOAD_FILE_END){0 M- k/ S+ W8 f* I L( O
- if(Update.end(true)){
% h1 ?/ P: g# u' |6 J - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. B0 ^1 u6 U( v' W2 N& R
- } else {5 @" c5 J! Z3 i( j! B7 a8 ^5 N
- Update.printError(Serial);
- K+ z. y# Y9 U. [9 p0 h - }0 z9 n: a' Z- p9 I- k6 L
- Serial.setDebugOutput(false);4 b4 }. r1 H9 K/ [9 ^: W8 l) P( x* ?4 h
- }4 a4 P+ M$ O( t8 x
- yield();
5 Z" j0 f0 p3 }2 E7 L/ A( T* f - });
5 G! Y0 f! z& y, V& y" @ -
9 K Z' q) `4 H/ R# O" }. V+ e+ d - digitalWrite(2,0);' u: Y( G" j' m& h- r0 h
- mainAction();) t! b8 O+ a) c j) n1 d
- if (digitalRead(0)){- Y, v8 v2 e, V7 s7 n
- ESP.deepSleep(0);
0 f1 s( a3 ^4 D+ Z1 q& t- p - } else {
9 R, I* s4 ^/ w/ o5 A0 B - server.begin();
2 ^- {9 i# D$ g' | - }
8 D% ]) A' @4 q - }4 i1 S9 _& {5 V/ z# H$ t
- void loop() {! L; F$ C4 D$ V/ A9 [
- server.handleClient();
" p% S: L9 }% n$ t; G$ } - delay(1);/ i5 K+ ]/ J* q, s0 T. I4 U4 S) ^
- }
+ \9 g, [4 w* w - String doGet(String url){
3 g: `3 F9 E% t8 N" A" u - if ((WiFiMulti.run() == WL_CONNECTED)) {; {7 _, A4 ?. Z7 y5 t
- HTTPClient http; x' ]2 o% F& a( d6 a
- Serial.println("[HTTP] begin...");/ `8 o6 i( T; z2 m; V8 @! ?2 X
- if (url.startsWith("https")) {. v% M: M+ k) n. x' [( z7 ~2 {
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: B; G7 K' O: r1 T. y8 j8 y
- } else {$ p) n9 y" [; r: ?; u6 c0 s
- http.begin(url);, f! e- J% i! D3 {. d# o
- }
: n' O2 |% M' K/ \3 L - Serial.println("[HTTP] GET...");
* B9 w" @) |7 a. R6 F - int httpCode = http.GET();
: ?$ F8 m e9 B+ S# c |% o - if (httpCode > 0) {6 P3 G1 D8 i( P- T( H$ G9 E) z
- Serial.printf("[HTTP] code: %d\n", httpCode);
$ H c4 E: L4 ~" f - if (httpCode == HTTP_CODE_OK) {
& P; M, @ ~- i9 U) L: A8 U - String payload = http.getString();
7 H& k# T; {* {7 U' U: Z, }) c - Serial.println(payload);
2 v' {3 W4 x# C B - Serial.print("\r\n");
& v' }8 H$ t5 b) q- h, h1 s - return payload;% X0 F0 _- W1 k# e. K6 U9 O
- }
# A. j4 f& i S2 @; D - } else {# F, B. ^ ~) d2 J+ e. a$ ] k- [
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ A# {- q; [, S6 O9 u0 M
- http.errorToString(httpCode).c_str());# p! [( }- s2 P0 Y' M. e: w; _: \
- }
, ?. V. t% P* o. {. D0 x; v9 | - http.end();
4 Q4 ~- X# f, j - return "";
& U; L$ ~, Y6 W2 Q: J - }
1 I; ^4 Q4 p8 B5 D( X. J - }' d0 v2 n0 U( S) r
- void mainAction() {
$ w+ o5 ~5 [: E - // 发送请求
K$ v. h& F1 S6 X5 f. [ - doGet("http://google.cn");
3 t2 t L, S/ \9 c9 _8 |& m - }1 \% K5 G1 ^! U- P
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