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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) z! F e. ]( R/ ~ _0 r
- #include <ESP8266HTTPClient.h>
5 j: ~8 a0 B4 S6 \, R' ?$ b - #include <ESP8266WiFi.h> P8 K4 M3 G1 V$ O7 P
- #include <ESP8266WiFiMulti.h>
' U* e f6 \+ M# L; c - #include <ESP8266WebServer.h>
0 M$ L% b7 s1 S, A4 a' a/ ` - #include <arduino.h>
& W# H1 d& Z- v3 G2 T - ESP8266WiFiMulti WiFiMulti;2 B# F+ o A, e y+ ?1 |
- ESP8266WebServer server(80);
( k0 {. ]/ h9 d+ Q! W2 }, ~ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 H1 V3 R8 R$ `9 z% k - ADC_MODE(ADC_VCC);2 r+ u1 s. k) N4 F; l/ B) `
- void setup() {
/ d7 {! w/ m; | - Serial.begin(115200);' M1 i( y# W! R% T* m+ E
- Serial.print("\r\n\n");- z p& |6 _( ?
- pinMode(2,OUTPUT);; Y$ y/ H0 _/ G' s; d' }- O1 l
- // WIFI
( }, W. a! ?, k! @1 U v - WiFi.mode(WIFI_STA);
& s! ], @* l) r, i7 v( ]/ Q) t - WiFi.hostname("Sparkle");/ _# Y& J1 Q! j u2 I
- WiFiMulti.addAP("wifi ssid", "wifi password");7 H6 Z, ` q1 h7 _0 }7 d7 e J! j2 L
- int tryNum = 15;
; L$ A+ }. r7 V) r - Serial.print("Connect WiFi");
0 W" [* o, t% y/ n* {) H' m) B - while (WiFiMulti.run() != WL_CONNECTED) {/ L* {+ J( r6 l/ t& G( c+ p: r
- digitalWrite(2,0);
0 k* C# \- U- N: Z% N3 K8 I6 J - delay(200);! N% T* ^* T H# m- K
- digitalWrite(2,1);
2 s# f. P6 g2 X& k - delay(300);
6 n5 J; f, [, g. J - Serial.print(".");0 _ v" a# M4 R2 N( L) @6 A T
- tryNum--;
) F* }, h: a5 K1 f - if (tryNum == 0) {
\: t# Q- ?7 b - // 1min
! T7 u: s% G, O3 b - // ESP.deepSleep(60e6);
0 B' ]$ i/ `( Y$ J* x8 o - ESP.deepSleep(0);- r! G/ |/ p: G. B# h4 W8 s7 s
- }
1 n* O$ H0 F# ]1 m, Z4 s1 J+ ] - }. j% \+ v3 |3 @7 c: E
- Serial.print("\r\n");
1 t+ J9 B% a. _1 Z# V - digitalWrite(2,1);
5 S H! F. s/ ]# t, Y - Serial.print("IP address : ");
0 S" Q( ~6 \$ _2 u. k& e - Serial.println(WiFi.localIP());
. E+ s' J2 E5 z7 o2 h% f - server.on("/", HTTP_GET, [](){( C7 M) n# G5 H# F' @& R, d5 m
- server.sendHeader("Connection", "close");
4 ]# P4 B: ]# G2 a4 P+ \2 M: N) } - server.send(200, "text/html", serverIndex);
: K9 o8 E' G4 W - });
2 n8 b0 h. [& g' x - server.on("/update", HTTP_POST, [](){, n+ J& R# P, s0 N2 v5 n, X. Z( ]; v
- server.sendHeader("Connection", "close");. |% x2 l* H# U5 Q' J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( [7 e, v& D+ A; O
- ESP.restart();, T$ q, \3 E) U0 f/ I
- },[](){# j1 N8 G8 x" J! s: z% B
- HTTPUpload& upload = server.upload();) h4 G9 R: s3 J( W: N& t
- if(upload.status == UPLOAD_FILE_START){
/ K8 u7 c2 ^7 D2 S- |7 q - Serial.setDebugOutput(true);+ u) V" Z" f- x! `& T$ D
- Serial.printf("Update: %s\n", upload.filename.c_str());
- B( D( X/ h7 B6 _ y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 w* _4 N) R# k" ?% U3 n/ L$ A - if(!Update.begin(maxSketchSpace)){
0 m& X. m2 q }3 ]. _2 J - Update.printError(Serial);
) y9 h/ I1 [, @9 u* B; ^ - }
5 \- K; R3 E& v; |' M0 E6 C [ - } else if(upload.status == UPLOAD_FILE_WRITE){
( r+ k0 |4 z2 r+ e4 T# w2 n - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- f" M* @0 e) L" l$ H
- Update.printError(Serial);
, K7 s7 a1 ]( m - }
w5 N9 G5 D c - } else if(upload.status == UPLOAD_FILE_END){
; l0 G$ D0 u1 Y1 ]' D - if(Update.end(true)){
9 k2 k$ \4 S, U, ^" E1 Y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ B2 y# r' U8 _, z6 t. E
- } else {
5 p8 R9 w5 S3 l+ I - Update.printError(Serial);3 p; ?8 P' O1 I- U; l1 B M
- }' j) X+ Z( K- ]6 D: b$ d. H
- Serial.setDebugOutput(false);
) h% I- a, H, L) @ G - }$ o) G# Z [+ a: J8 N2 s% T5 E
- yield();1 M0 W3 z9 x: r5 m, B- N @
- });/ Q9 _* z6 p4 w- S
-
" {: d; S/ J# X0 a8 ]3 n3 T - digitalWrite(2,0); g1 I9 i5 a7 L6 [ {' [( [
- mainAction();2 e* s- K& s9 u, \
- if (digitalRead(0)){) W" U( A) B8 j
- ESP.deepSleep(0);9 b9 v* l' }4 N; [9 K
- } else {: V F$ r+ m# F( w
- server.begin();1 K$ `) s0 L. a6 K( q. [# u/ u
- }7 l! ~8 S1 ~# |( n& U: w
- }, n- d& Q+ T* l E3 D Q
- void loop() {+ O/ r& I9 b! U
- server.handleClient();
/ \3 ^2 [, w+ |* y# V - delay(1);& v p y) c& I6 @1 y
- }
) a5 t$ t5 Q$ Y' L, G% j - String doGet(String url){* O: O3 x/ o( G: X
- if ((WiFiMulti.run() == WL_CONNECTED)) {
7 ~# Q) {7 _+ V% q" D: k" e5 _ - HTTPClient http;& B: O& T3 [" e: b
- Serial.println("[HTTP] begin...");
2 {4 e: _, l4 y9 E. _' J# F( T: Z: F - if (url.startsWith("https")) {7 s% B( G7 ?2 k& X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 \2 c: s" K9 ]9 p; h A - } else {) J7 c$ p$ T' g
- http.begin(url);+ A4 l& w- C, ]
- }
& R/ I' |% I8 Q - Serial.println("[HTTP] GET...");
- g. e6 X: X2 x" g - int httpCode = http.GET();. ?% x( |1 I1 s+ Z
- if (httpCode > 0) {
' n3 x/ a0 G+ v' J% i W3 v - Serial.printf("[HTTP] code: %d\n", httpCode);
; x" H# T5 r- g5 W7 \9 a E. k% j - if (httpCode == HTTP_CODE_OK) {
% S4 R, ~! m" ^; a7 F& Y1 t6 l1 v - String payload = http.getString();
( p+ D* z: r% n8 K - Serial.println(payload);
# j7 Y9 J( @1 k6 w4 a - Serial.print("\r\n");
! i$ {6 ^' y5 X' b - return payload;; q) U/ d1 H* Z2 @5 w* x H
- }
( U6 V. c. q m1 p4 {; c, v+ Z4 E - } else {
; @- \' ~6 W7 F( A2 r+ W - Serial.printf("[HTTP] GET... failed, error: %s\n",$ A5 W O$ A1 K& ~
- http.errorToString(httpCode).c_str());$ R* K1 R: L7 m$ e) e5 J
- }
" V$ N( Y- O4 C! q: D3 R9 Y6 [ - http.end();2 n5 j% A8 v3 {+ c& V
- return "";* c( s1 y; L* f- O0 w& ^9 w5 A
- }2 Z3 i5 a+ z" r4 v6 R
- }
6 _) q9 r |: J; e/ t - void mainAction() {# g6 B0 V4 X1 ^6 H9 }2 I
- // 发送请求4 c8 f2 b8 z* C; x( v X" y7 p1 ]& I
- doGet("http://google.cn");: p/ p2 U: ?% O0 [, P
- }
8 d5 y7 d+ b" B) j0 W+ ]$ z
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