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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)
. H$ ^" N" s4 k5 m& Q! q! R- #include <ESP8266HTTPClient.h>' t1 ^" a! X, B" h0 y* A2 X7 j' w
- #include <ESP8266WiFi.h>
/ ~1 K# P+ _, z - #include <ESP8266WiFiMulti.h>
3 ]" U$ k- U6 X2 i* g1 c! z - #include <ESP8266WebServer.h>
4 K7 Z/ i0 M1 ] - #include <arduino.h>
4 S! w k8 {6 n# a2 w0 M* U3 } - ESP8266WiFiMulti WiFiMulti;
2 Z0 B# K! [7 ^ - ESP8266WebServer server(80);( |3 @; q2 K% t! g# M6 K
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: Y, O" C& [ n! u5 N
- ADC_MODE(ADC_VCC);( f0 }5 \6 c. E+ X2 C8 L
- void setup() {' M/ S7 d, y2 b% |
- Serial.begin(115200);
1 a- M- a' d7 P2 e+ J - Serial.print("\r\n\n");4 r1 j5 `1 x. ~" O% E" F
- pinMode(2,OUTPUT);
7 ~! ]" P& S& v. M - // WIFI
& n4 Y3 X1 J" n - WiFi.mode(WIFI_STA);4 J( y4 X/ Z, R" V' p0 E
- WiFi.hostname("Sparkle");
- ~, N+ r9 T: b- G s, X4 p - WiFiMulti.addAP("wifi ssid", "wifi password");
2 h2 v& w$ K. Z' A U9 Z - int tryNum = 15;
$ ~1 r* i2 w4 L - Serial.print("Connect WiFi");
) |$ T# G! s: e e; ?- G - while (WiFiMulti.run() != WL_CONNECTED) {
$ d9 ]/ }$ c3 e8 W - digitalWrite(2,0);
4 I5 B& @: W4 Y& c( J - delay(200); C& q: Q7 g6 @% ?% e( ^/ p
- digitalWrite(2,1);
% S3 b' D# z" F - delay(300);
- I \. q; A- U5 [6 q: S. D - Serial.print(".");# I$ \5 { w% P) ?8 n* P6 U
- tryNum--;% V4 M* h$ T) _
- if (tryNum == 0) {! E' c6 K" W! T* \! f" f
- // 1min
0 a% z; U! F: ?6 n8 Y( F4 T+ D& g* t - // ESP.deepSleep(60e6);
9 \. ]. a/ I, {$ D" g. Q0 J1 H - ESP.deepSleep(0);! A, D4 Y2 P( j/ H7 Q& G4 }+ M
- }
6 ?9 O% D- E" o - } B! n! L- `- L/ O
- Serial.print("\r\n");
2 T1 R) F, U, S# r- T - digitalWrite(2,1);
; @: F4 K% _2 M - Serial.print("IP address : ");
% D0 a; q. x0 ^ E8 Z7 j - Serial.println(WiFi.localIP());% V( F+ E% M2 ]# ^+ j
- server.on("/", HTTP_GET, [](){* X1 W1 W9 l# r& f
- server.sendHeader("Connection", "close");
3 h# _/ d4 i, a* U2 L2 L - server.send(200, "text/html", serverIndex);
/ E0 ]: q7 C5 L - }); }4 R( @) p6 z) y. f. t
- server.on("/update", HTTP_POST, [](){0 u. C# c9 w% @$ c" e
- server.sendHeader("Connection", "close");* k* B, a3 a/ |6 F/ Y. z
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 l3 ?0 e0 j5 E5 l
- ESP.restart();# [2 ?1 z' N' k2 b
- },[](){
~/ V0 f# s n1 ?' Z3 c" D8 A - HTTPUpload& upload = server.upload();
7 f6 N1 s: W9 e6 {3 P) D; i5 c. Y$ z - if(upload.status == UPLOAD_FILE_START){- @+ Z S8 @3 \ k/ b9 f! s
- Serial.setDebugOutput(true);
# v# D0 S. g7 h - Serial.printf("Update: %s\n", upload.filename.c_str());' l& R5 _, N& k# j8 N2 d/ ]
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, Z/ ~% A+ j5 A; e$ F3 s! i3 Z _: ~ - if(!Update.begin(maxSketchSpace)){
5 O U1 a7 ~" T4 R - Update.printError(Serial);: s. {) x' @$ c( Q& g2 Q. ~
- }
$ r/ ?8 ~& F6 u( K0 T ~6 H - } else if(upload.status == UPLOAD_FILE_WRITE){- D# e: x: w/ T. r6 G! [. p
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 V& b4 |6 T0 [0 F6 @+ z
- Update.printError(Serial);) P7 v7 W2 Q1 J5 q
- }. x& v4 j7 F" {2 E
- } else if(upload.status == UPLOAD_FILE_END){ |0 |; S/ B( S% i+ X
- if(Update.end(true)){" q; \& ]& J* s
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ }8 p! {' O* U4 e. ^# r, {
- } else {) ]+ L2 p& u& |
- Update.printError(Serial);
5 D: A8 _ R! N: L c - }
4 k& m! p! D9 `# f - Serial.setDebugOutput(false);0 \4 V: ]- B2 g2 @9 P) ~6 i+ W& A/ g
- }) p* e/ H/ D; W! ], T4 K3 @& x
- yield();
/ I6 e# p! b9 N9 z, l: Q) U x - });% k9 ^# k5 B/ h7 k" k8 r, m" ?
- $ [5 U1 \& ^ j& r
- digitalWrite(2,0);8 \4 S% T4 p1 _( H4 R" i: F+ {
- mainAction(); N, v/ E, T1 i; n
- if (digitalRead(0)){
; }% W; p( M/ ^: c6 u6 ^ - ESP.deepSleep(0);
+ Q- r2 [% [; @ - } else {
9 ~( i! n) r) A5 b7 E( u. @: i - server.begin();
- l9 q! l6 ]6 Z - }! M: q2 U2 l. l* S. _0 D( ?$ T
- }0 ^! Y" u2 }5 y: J. u* J
- void loop() {6 V; _/ S/ ]& D; I
- server.handleClient();7 ]7 [/ t6 p* B; D& j7 G% {
- delay(1);) [, C- i$ s/ R- b4 T' e$ G2 E
- }
& W$ _8 P2 G' C4 F7 z6 W - String doGet(String url){$ [' l3 p' c3 P
- if ((WiFiMulti.run() == WL_CONNECTED)) {
' l$ ^+ X5 K% X$ f$ i7 Z% m, V) d - HTTPClient http;
7 |( c7 `! L2 `9 D7 _* L - Serial.println("[HTTP] begin...");" y2 N$ W/ u/ p& F1 C5 f6 z
- if (url.startsWith("https")) {. x' Q! F$ B9 U! h* ]2 r
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, Q6 I) N- g3 Q- G$ I
- } else {8 c3 ]5 l; I$ m( X- C$ Y
- http.begin(url);
! p- q8 @; T3 ~: m4 a) c6 G - }
% R, O4 Q; }7 x% J% b! v - Serial.println("[HTTP] GET...");6 d/ o$ e' m7 z
- int httpCode = http.GET();
' D& M3 {4 c" j0 a - if (httpCode > 0) {$ x8 ~( J4 H' q5 }$ x m3 L
- Serial.printf("[HTTP] code: %d\n", httpCode);
8 t" o2 c4 Z1 l4 h/ c - if (httpCode == HTTP_CODE_OK) {0 x$ K. ]% K! a q) ^; a" s% G
- String payload = http.getString();
$ t, L/ x7 \+ P: S - Serial.println(payload);2 R5 o+ o' }6 x7 x6 L, z- N
- Serial.print("\r\n");
3 F5 P+ m, v0 L$ w* o4 U/ ~ - return payload;
; ^; ?8 |" \% x5 A - }
7 _: r0 d" A/ ?" ` - } else {
. W3 V% C' ?- t+ W - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 h, I- K6 p& g. k: w% |! l. ? - http.errorToString(httpCode).c_str());0 P/ f4 ]* H: X7 A. f
- }
' ~3 Y* W: {( I8 T$ J - http.end();) q" E! ^# }; n0 c( C
- return "";6 `! p h% i5 ^
- }
" y; t9 K4 z7 u - }
4 r( m9 f6 R! s& c$ H, `; T - void mainAction() {
* G6 T. J; U T# n. D5 ^ - // 发送请求
2 }2 o; d3 P7 a6 N7 u6 M - doGet("http://google.cn");
% A8 a I# x- u( `+ ?) S* j - } t' w' B( n" _2 P
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