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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, U$ l, w( A0 m; R# n9 k- #include <ESP8266HTTPClient.h>' | }$ r' B+ ], d9 Q
- #include <ESP8266WiFi.h>
x+ w$ i4 j, X P( j0 i: P. I - #include <ESP8266WiFiMulti.h>* X" d+ a ^) a( j- U% p" f% u0 P" K
- #include <ESP8266WebServer.h>- R& c" `8 G8 ?, h
- #include <arduino.h>- S' c+ y' B5 c2 k1 b, N" {5 u
- ESP8266WiFiMulti WiFiMulti;
- E4 T' Z8 E9 Y( M: y - ESP8266WebServer server(80); H9 h! E0 Y8 g) L8 M
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 z k5 b% e" k" g( P
- ADC_MODE(ADC_VCC);
- d( @5 H7 S, ~3 j8 I6 u, { - void setup() {
' {6 @ }& a C7 h, S! h - Serial.begin(115200);
1 G1 T4 Q M1 m3 V6 r& p - Serial.print("\r\n\n");
# V( t% }9 |- ^* R6 b% }- r% O - pinMode(2,OUTPUT);
. P$ i4 S# }: G8 C. ^# b - // WIFI# H% @& l" M" `' c6 }% l' b+ O: `
- WiFi.mode(WIFI_STA);
, y; L ^3 Y F2 C" ^5 u - WiFi.hostname("Sparkle");8 M; E. |8 ~1 R* a
- WiFiMulti.addAP("wifi ssid", "wifi password");, ~# m2 T- y/ C5 U; I
- int tryNum = 15;
6 C" u( X5 W5 T7 O0 l; h' y5 Y, Z0 ` - Serial.print("Connect WiFi");8 L- t! _& d8 k( t
- while (WiFiMulti.run() != WL_CONNECTED) {9 ?( p4 H4 S- z V# r; Y$ J p8 F7 L
- digitalWrite(2,0);4 Z( L+ Q2 r: {% f) v
- delay(200);
' o$ T& _+ S" E - digitalWrite(2,1);
! |/ |& T: d7 U5 [ - delay(300);0 E6 \* n0 x# `6 i0 _5 e9 X6 i
- Serial.print(".");2 i7 G* K W) o# o! I4 A7 X5 i
- tryNum--;. P# s: t4 B; v$ D! z$ F
- if (tryNum == 0) {
8 k ^, |: l: E/ _' D - // 1min1 t- R; [( g% R/ _; A8 z
- // ESP.deepSleep(60e6);) y' n( E) Y# S2 Q: P& c# J
- ESP.deepSleep(0);
% z% T2 L* L G; {6 f; w$ G - }6 V, x$ V" J; V& J# X& T
- }" }, {7 N% D( M' Q, N, X6 X
- Serial.print("\r\n");" A+ A1 R; z& ?% o
- digitalWrite(2,1);: K; T$ I5 r4 L
- Serial.print("IP address : ");' L4 h" r% C. Z3 T
- Serial.println(WiFi.localIP());
6 T' \/ M) j" C% j - server.on("/", HTTP_GET, [](){
! k1 E+ x# R1 ]/ A3 T - server.sendHeader("Connection", "close");" u- x+ p3 v/ m% ?
- server.send(200, "text/html", serverIndex);
9 R# |5 `+ F2 W8 {) m; w/ l - });8 I- m- f7 X. X( ?! l& I* Z3 V! x. l' T
- server.on("/update", HTTP_POST, [](){
. l% ]# l9 ?' `$ a5 L! f$ p" I# V; e' H - server.sendHeader("Connection", "close");
. w. z9 R. K) z8 ^* j- Y2 Z* u - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ C! |* i1 ~! B3 C9 ^! ? - ESP.restart();6 y/ b' \0 x) R, \9 V
- },[](){3 j. w% X% ]0 E; D- Q
- HTTPUpload& upload = server.upload();4 E/ Y- \% ?2 D' o( _, N1 h
- if(upload.status == UPLOAD_FILE_START){* P4 E: ~ { Y5 U+ T: @4 F* ^
- Serial.setDebugOutput(true);4 w: j6 S1 Y( f
- Serial.printf("Update: %s\n", upload.filename.c_str());' Y; `0 I; ~* l$ g
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 B+ x5 h) R+ c8 |$ V - if(!Update.begin(maxSketchSpace)){+ }' z2 O6 ^3 D0 Z$ w1 e4 m, u) u6 ]
- Update.printError(Serial);4 |1 I$ b4 u$ \7 Y9 f
- }- m' g, t# G6 |) b- g! w2 T1 F# X
- } else if(upload.status == UPLOAD_FILE_WRITE){$ h0 r. _( {6 r* Q4 o) F5 Y9 ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 s4 _" x% v$ _0 X( T1 a - Update.printError(Serial);1 N3 C& I7 R8 S" `9 {
- }
& T, s% [* L& u' h* z( ] - } else if(upload.status == UPLOAD_FILE_END){
6 B3 z8 A: I6 s7 V3 P0 f - if(Update.end(true)){
8 b) f7 s8 @; ` b# Z5 I0 c. x7 w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, K6 Y2 P. v5 o; R) ~# S3 T- x5 O$ E - } else { s" F3 U# b4 K7 F" b. p
- Update.printError(Serial);
: r5 r" H- m: s( ]# x, M - }7 s" ~/ w2 s& X5 c! C [% s
- Serial.setDebugOutput(false);3 a% p' W; |7 d; w K( B
- }/ T9 ~1 s- g! u+ P
- yield();
( [3 O! p& I4 s! _ - });3 s9 M$ ^. A& Q3 `
- " g" N7 E7 {8 w9 z# ]) }4 K, A
- digitalWrite(2,0);
8 G+ V+ N9 W4 W9 g# M3 }) N - mainAction();! z! x/ a/ M* N1 C7 y* K
- if (digitalRead(0)){" E& Z1 o, u/ ?+ s& R8 d& a
- ESP.deepSleep(0);, E' o/ i; y( u' |7 g8 i: z; V) ?5 }
- } else {' R4 x# _& r% ]" v" M) s
- server.begin();
6 J& f% x/ k* r* \ - }
3 D7 D0 f. i1 r8 @7 _* y+ @ - }
/ W6 E/ K: F7 N - void loop() {
. k: j p5 z4 i5 e& C/ H - server.handleClient();
7 J& g! B# }' q! V+ c0 B - delay(1);
Q2 t! d' x i; Z0 p; d* ~ - }
2 I4 b5 j1 T4 H) g7 e$ Q" g - String doGet(String url){! W8 Y0 C; q ]* n/ ?9 z; w$ ^
- if ((WiFiMulti.run() == WL_CONNECTED)) {
5 \; w2 F2 t! p7 O - HTTPClient http;
# R$ h+ `! T# o* U& N; o - Serial.println("[HTTP] begin...");/ `0 E' ?' Y5 u$ A( [9 r F& v
- if (url.startsWith("https")) {
0 g+ L+ A3 e+ @) ~- u6 m - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: p2 ~5 o; [- ]& y# r+ h - } else {
$ o# q7 U) e: c8 G2 B0 J - http.begin(url);
+ @$ a8 g+ @+ p6 ]8 \! I - }* p! j' Q8 B" n! I. M i: G
- Serial.println("[HTTP] GET...");
: q- {% B4 G+ Q: h% s# V$ j% g - int httpCode = http.GET();
. h/ Q. c; N2 [1 M" U ? - if (httpCode > 0) {4 X- c, E) n5 B% S7 k8 ? \4 E1 a
- Serial.printf("[HTTP] code: %d\n", httpCode);
: q1 P, x @8 ~. h- T - if (httpCode == HTTP_CODE_OK) {
9 o: g5 V* \% C! f2 w% s* f - String payload = http.getString();/ J" H8 A8 S5 \: k, Q
- Serial.println(payload);
% n" _( s. O8 M$ G3 q g - Serial.print("\r\n");3 ~$ `2 z4 m3 k' Z
- return payload;
+ t) _) J( k# q; Q4 n9 P# _ - }
~0 i& ?- \, L, ~ - } else {
: @# T- N) B8 T8 c) j d - Serial.printf("[HTTP] GET... failed, error: %s\n",' P! ]% ?1 w/ P( I, [
- http.errorToString(httpCode).c_str());
; N" t0 e0 S& b. | - }% ~& }6 D+ d2 i$ f- a! H4 w$ U
- http.end();" G* N& f' E" n$ Y9 t2 W" C8 [
- return "";
X8 m9 A7 e9 {% s9 M3 f - }
; i- @/ Q* U# m. v; q, n$ ^. y - }$ s1 n1 \5 u: M+ d
- void mainAction() {. L7 U, N8 G0 ^; d5 q
- // 发送请求! p8 \- n% F8 K8 t$ S3 B
- doGet("http://google.cn"); J! [. n4 |% t
- }) \. n# O8 S* P2 P/ Y: A
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