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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)
! I) O e. Q- z) q+ i! u- #include <ESP8266HTTPClient.h>% j% T, T! I, N' I; l/ F! z2 M( n
- #include <ESP8266WiFi.h>
0 E( B. C1 A `$ s3 A. Z3 a - #include <ESP8266WiFiMulti.h>- W! p n* t9 q3 Y* _ |, D* C
- #include <ESP8266WebServer.h>* R6 |( w: `2 h7 t3 g M! S
- #include <arduino.h>+ G4 ^: B' R. m& N5 F$ `
- ESP8266WiFiMulti WiFiMulti;
# @0 |+ x! ?% F - ESP8266WebServer server(80); T I1 M" o: G: N) p5 |- B+ f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 G7 \, M' `* p8 D. H+ W5 W3 S( i
- ADC_MODE(ADC_VCC);/ M9 E, Q9 V1 Q4 h9 j# |/ h
- void setup() {6 Q' W# ]0 ]% P1 C' @ a5 j
- Serial.begin(115200);/ h% m% M: N$ `/ ?$ ]
- Serial.print("\r\n\n");
# }6 ?# v; y+ ?0 S' D" T0 D - pinMode(2,OUTPUT);
7 L% i, c q! V9 d - // WIFI; _. I) E# N) K( E' f! W9 I
- WiFi.mode(WIFI_STA);8 K. h3 p) U5 |: d9 D7 _# s8 ]
- WiFi.hostname("Sparkle");
* a9 w/ t+ Y, f+ A0 }6 g5 P - WiFiMulti.addAP("wifi ssid", "wifi password");
* ~+ Z4 j; Y3 y3 u) R - int tryNum = 15;" b# N- D/ L& m4 c9 o& D
- Serial.print("Connect WiFi");! k7 [ p2 P2 Q7 V: z/ }. g8 u+ [5 u
- while (WiFiMulti.run() != WL_CONNECTED) {: w- P& c4 ` P' W
- digitalWrite(2,0);
; O% P( p9 g. U1 w: q* g - delay(200);$ y; \! R3 K# G' O
- digitalWrite(2,1);
1 p: r$ _4 K* { X3 T - delay(300);
6 ]/ v) x. H, e& n! p9 T - Serial.print(".");4 |2 z. e* w0 p3 ^. M* X
- tryNum--;
7 H8 [* F. Z: L4 n9 V - if (tryNum == 0) {
' K; o" J, N$ `; q3 \. y* H9 ~: @ - // 1min A) ~8 s2 Y; l: c; a
- // ESP.deepSleep(60e6);' h% M- Y$ t: ^, x ?* s
- ESP.deepSleep(0);+ s' y" @6 O" ~" S
- }
1 k( B i5 H4 m4 O" X$ O - }
) k& \( f9 T( E$ C - Serial.print("\r\n");
" g$ ~* V9 r- \9 e - digitalWrite(2,1);
& x7 S' S8 v" { - Serial.print("IP address : ");
# n# b. j4 ~6 v$ g0 n( M - Serial.println(WiFi.localIP());
' N5 z, G) V% l, M* W6 S - server.on("/", HTTP_GET, [](){
, Z$ t& C! p# a! W8 ?; d1 Y: X - server.sendHeader("Connection", "close");) n( z( [( |% a0 v% g
- server.send(200, "text/html", serverIndex);
0 i8 R2 N' Z! x" `( e( H - });& t+ C& a1 T' G3 K/ b$ r" A4 i5 B2 R
- server.on("/update", HTTP_POST, [](){
- O; j4 e7 y g9 w+ H - server.sendHeader("Connection", "close");8 ]3 x$ p3 u8 K4 P F* X6 ^
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% Y6 J3 g! t7 g( _8 @ - ESP.restart();8 B5 n2 o$ Y k5 G3 V
- },[](){: U% x9 j/ K( N$ Y! p4 Q: A1 B
- HTTPUpload& upload = server.upload();
* K T6 L. C, M! E8 C5 B' r f' ^0 L - if(upload.status == UPLOAD_FILE_START){
/ ~8 t+ u$ u. c! G/ D' S; g9 m, O - Serial.setDebugOutput(true);' }1 P3 \1 z+ y& S) m
- Serial.printf("Update: %s\n", upload.filename.c_str());& C) ^* W& j( H/ [. d6 U; A7 p
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 a0 @1 B( c( a' @ - if(!Update.begin(maxSketchSpace)){( U4 Q% Q4 f8 z) p
- Update.printError(Serial);9 ]6 C5 a. z, |1 f# e \) \
- }
6 {: o# M' S8 S' Y& t h0 b - } else if(upload.status == UPLOAD_FILE_WRITE){% s+ x7 o% c) ~) h) u/ q. n
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& |* o& }' Z" x, V+ f
- Update.printError(Serial);
6 t- G: ~1 O& ~/ \ - }
) a1 s2 J$ z5 g. x" ^ - } else if(upload.status == UPLOAD_FILE_END){" N h9 p# H9 W0 \
- if(Update.end(true)){
8 x% D7 U+ s8 o: Q5 g - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 D" f5 d5 G# t" Q. ^1 B/ G
- } else {: z8 b; |- A' @; \
- Update.printError(Serial);8 }" s# n; } X1 G( X
- }- o4 Y% i* a9 d. B4 n1 l
- Serial.setDebugOutput(false);9 p2 g, s) Y9 t; s* B! Y. ^
- }
# M" [! U( Q( F/ C, H - yield();
! }: o) K8 [; @5 v+ f - });
) T7 h1 ^5 P7 v7 G) c5 v; x - B5 l! o2 N- m
- digitalWrite(2,0);
9 T0 N5 X7 Y* V$ v5 O" A - mainAction();, j8 l$ S7 M9 b% E& Q Y1 K
- if (digitalRead(0)){8 F+ `8 r# G# v2 {, l
- ESP.deepSleep(0);) V i4 u7 }: Y8 m( z: y5 N9 }
- } else {4 B6 Z1 H; @+ b7 H+ S, S1 f
- server.begin();
z: y0 v, A- u5 V4 O+ Z5 G- k - }2 p/ L1 }3 G3 {& X7 A" n
- }( Q, b4 F! [" ]
- void loop() {
; d- {4 ^/ Y4 s% M c4 c - server.handleClient();7 d4 n6 v& g5 y& ~* R( l3 |5 f- y
- delay(1);" K4 N1 y4 |3 U5 [7 o7 S
- }) |6 i9 ?6 n' v& q2 V1 Z- j( j
- String doGet(String url){' v# q( u% E: f8 a2 d `1 y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 n0 {$ z6 J% ^' u4 m - HTTPClient http;
8 C! K+ Q$ w* E# D/ J2 c - Serial.println("[HTTP] begin...");
; r- L: o" b% P# w - if (url.startsWith("https")) {
' E" y' h k8 S" m% o3 t - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 z7 c h7 L' i+ e: g" Y, z8 q - } else {
) j+ ~# N7 z3 w0 c1 b - http.begin(url);
5 o0 W+ S3 j/ P' O - }1 ?' q- t( Z5 K1 X% N% f
- Serial.println("[HTTP] GET...");) | {1 V; Y! U4 r* w( y3 Y
- int httpCode = http.GET();
) v1 O2 [2 w" B5 w- A2 C8 W - if (httpCode > 0) {3 v* b( R/ U2 z! I
- Serial.printf("[HTTP] code: %d\n", httpCode);( }- _7 S- D7 W) F* s4 V7 `
- if (httpCode == HTTP_CODE_OK) {' _' g) }& r6 ^% J: V6 f) D: L
- String payload = http.getString();
0 F0 Y, {3 N4 P# ` p0 q: E& d - Serial.println(payload);
2 E1 l1 q2 ]8 l3 X& h4 l - Serial.print("\r\n");
w5 e# @! {* O2 Q - return payload;5 p+ ^6 X/ c2 Z j4 g$ n D
- }* Z2 h: I5 O2 _/ g+ \; g* i
- } else {3 w7 {% Y0 x% A& q( @0 T8 b- G
- Serial.printf("[HTTP] GET... failed, error: %s\n",3 |2 }$ k x% S* m2 E
- http.errorToString(httpCode).c_str());
& J! B8 ~! d v5 Y# M3 S: y. z - }
) ?& K+ [& H& ^) e0 ? - http.end();6 P0 M5 `! G M( B1 T
- return "";- E# e' k; b: _3 x
- }; o8 e. O( S$ S4 O3 E7 G
- }4 Q1 m/ w8 K# S( \
- void mainAction() {
2 T' |7 L# C0 U; `7 L) C - // 发送请求
. V8 g( m1 U" r - doGet("http://google.cn");9 e2 I+ B" H: L& ]% \! a# M1 Q
- }
: J6 @4 d* }3 C6 i* q9 Y
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