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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)" n! C# J' j5 B! b9 x# D ]" z$ T* E3 b
- #include <ESP8266HTTPClient.h>
: ` M2 _& c0 l" j' X - #include <ESP8266WiFi.h>; e8 n5 r+ h3 V9 O* e2 U
- #include <ESP8266WiFiMulti.h>1 u) H2 l8 s: c2 g
- #include <ESP8266WebServer.h>
" H1 c$ b- a) J, x8 G4 t. r; M - #include <arduino.h>
3 y( d9 s) h1 _+ g7 |0 E) H ~4 B - ESP8266WiFiMulti WiFiMulti;
5 o) y4 n+ m! Y- ~* j, Z - ESP8266WebServer server(80);
! P( w' C& K% A% i5 D$ A, w+ | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( i# U+ ~. t: y( s k( ~/ o - ADC_MODE(ADC_VCC);
! L, \% q' y3 k+ o: p- K - void setup() {2 E/ a$ r* H0 u B- O: Y
- Serial.begin(115200);5 v0 r$ e7 d. I1 A5 G; c) Q. C
- Serial.print("\r\n\n");' T9 y% p n; ~1 `4 k. B( R( e1 [0 s
- pinMode(2,OUTPUT);& _6 m- r, A' z4 O. C9 [1 |
- // WIFI5 A3 ]9 n; e! P- ?) Y8 R
- WiFi.mode(WIFI_STA);# w2 ~: ^/ C L8 ]7 E
- WiFi.hostname("Sparkle");5 s0 q" _7 P3 J9 H: `
- WiFiMulti.addAP("wifi ssid", "wifi password");
1 ~5 P: ]" W3 m2 J! b7 g2 e O - int tryNum = 15;
* @2 Q( J6 B1 g) Y& Q - Serial.print("Connect WiFi");! f5 }2 B. ^) y1 h; T
- while (WiFiMulti.run() != WL_CONNECTED) {
% O! A) T( h) y- p. |. ` - digitalWrite(2,0);
, E; X' G) Q9 N" A0 W - delay(200);6 L: T2 p4 N) R1 d1 W5 P
- digitalWrite(2,1);
# k0 @0 _! q5 y! m1 z& Y - delay(300);* ?0 u% W# W- g
- Serial.print(".");
( ^- W0 x" ^1 h* ? - tryNum--;( }9 N, l. d& j; q
- if (tryNum == 0) {" R7 e0 v& _. {1 n2 {! A
- // 1min
) N5 N6 F/ B- S9 l9 R - // ESP.deepSleep(60e6);
+ f+ g3 q' e/ M* F% ?+ n8 |+ { - ESP.deepSleep(0);6 c6 `" r: L4 V( ]% |
- }6 g4 F- _ c6 j1 n
- }
, J" q: H6 M; e - Serial.print("\r\n");7 v- O) P) I* E
- digitalWrite(2,1);1 g& x, c7 h3 z' Y* x- M
- Serial.print("IP address : ");# y h/ v3 c8 `2 e ?
- Serial.println(WiFi.localIP());6 i) N! v6 M1 R& ^! K( s: |2 o
- server.on("/", HTTP_GET, [](){
2 C. k+ r: _9 s1 p/ D, N& [" Y - server.sendHeader("Connection", "close");
; X0 W4 p: _6 J c - server.send(200, "text/html", serverIndex);
) Z( b1 z& T4 Y1 @( [& w - });0 j8 q* y/ Q3 q- R
- server.on("/update", HTTP_POST, [](){2 m7 y9 R$ {! b" \9 f' v' a
- server.sendHeader("Connection", "close");
: C' n3 x) ]/ I- L# p2 C. ]6 [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% [$ e7 A0 q# s
- ESP.restart();
5 S3 a' P" s2 [- a# F - },[](){
4 B2 i- X( E( l) Q: r: Z8 Q - HTTPUpload& upload = server.upload();
: h! T- X$ m( @# \. d - if(upload.status == UPLOAD_FILE_START){
$ [, [/ y5 T8 g( ^6 o' b - Serial.setDebugOutput(true);
' _( p3 E5 E, [$ P - Serial.printf("Update: %s\n", upload.filename.c_str());
$ K* p2 T! _4 p1 { o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ A" w' C8 N: |/ V o7 {
- if(!Update.begin(maxSketchSpace)){2 ^2 X' }5 e/ d: s& c' V
- Update.printError(Serial);% e- d) N8 c! }' U7 A3 S5 x/ Y9 i
- }' O# V( x! Q% P5 m( X! O* R
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ O) c( A: U& ~" G4 R& b5 d - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 X1 u$ [& w8 f; }) @ - Update.printError(Serial);7 {6 g6 g) W, N* V* s+ a; N
- }* O: B0 o! r+ \+ R" H( [9 T; \( u
- } else if(upload.status == UPLOAD_FILE_END){6 l/ V7 u* @1 Z& J
- if(Update.end(true)){: L0 h. H( H6 T( I0 X# v
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ |* ` e: [" ~ [' M
- } else {) y% ^. Q" i/ @4 J2 k8 K& D8 O
- Update.printError(Serial);
9 U: O/ i' T. t - }2 ~4 z8 o; a* N; f
- Serial.setDebugOutput(false);
$ X( P) T# |' p, a) F) }' L' g - }
# Z4 w2 m1 B) y7 k - yield();
5 e% p8 `* L3 c8 f! N2 [ - });
% l* I7 L8 T" D5 d/ G0 C2 h0 B* N/ _ - ( F f$ e# [1 R% J
- digitalWrite(2,0);8 H6 v) \* }2 h$ p7 R
- mainAction();) c: B6 V; o# O! c) P* X
- if (digitalRead(0)){
- B8 ]+ U2 v% K) z8 T8 j/ f5 f - ESP.deepSleep(0);
) _4 z6 Z" z7 H3 n; C: {2 Z - } else {
9 ~* ?4 A- m" g2 ] - server.begin();
: F$ r' z* z/ ^" K3 j0 L4 x+ [+ b5 d - }: O! A3 P$ m) Z4 L4 ~
- }
9 ]! M$ x& f5 H) B - void loop() {* G4 h* I2 K9 }
- server.handleClient();
3 d+ a X4 ]5 n - delay(1);
* t6 n& _0 u( q0 f2 u - }
" i0 W ?1 l& w4 D' p - String doGet(String url){
) N) R% t3 D: p/ e! k: T0 t - if ((WiFiMulti.run() == WL_CONNECTED)) {2 S8 J7 e+ P8 X$ B4 J
- HTTPClient http;
4 b0 l2 K# D4 _( @3 {# g; t5 { - Serial.println("[HTTP] begin...");9 e8 i0 b1 _& E7 R' o$ p5 _( C# o
- if (url.startsWith("https")) {
) D/ n: {9 b8 k# _# R - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 c5 r' A8 D# V( q - } else {8 U0 F5 s' T; ^" ], J3 Q( t0 R
- http.begin(url);# J/ V2 \9 w2 U+ T s/ h
- }% k) _8 d- ^- W# w) R5 i$ k
- Serial.println("[HTTP] GET...");! M+ X! d% V" V3 C" L* ?
- int httpCode = http.GET();
$ y$ |- m& ]5 v/ Q - if (httpCode > 0) {9 [8 \. i, M1 s& e; D
- Serial.printf("[HTTP] code: %d\n", httpCode);
* ^' ^5 c8 }8 G; E; t8 H - if (httpCode == HTTP_CODE_OK) {
- _: a% P" W- @8 a4 |4 m9 l - String payload = http.getString();- E: t2 l' S: n! Y" W! K$ t+ c! g: Q. B+ ~# ]
- Serial.println(payload);' @+ J8 w; l- c
- Serial.print("\r\n");
) B& @1 ~' X& h6 i& j" Z - return payload;
3 N2 W8 b0 T7 h9 u3 z+ s - }' [) {" e$ i9 t. v+ D
- } else {
& y& B7 \% G [, A" k6 F - Serial.printf("[HTTP] GET... failed, error: %s\n",$ ^6 N) y) b: ^8 B0 {% V
- http.errorToString(httpCode).c_str());
2 P) q/ Y* k5 v o - }& I( f* B! J0 L9 Z" b9 R* D6 E
- http.end();
. G) R8 c1 H; Q: K; [. o - return "";* R1 ]# B% a6 ?/ N
- }
/ ?- ]. X7 Y& R" _# P& W - }
& f7 \& O' u3 V1 J. g, c. m - void mainAction() {
, ~0 d; D5 H8 Q: x' Z - // 发送请求
; y' \1 n6 \ ~ - doGet("http://google.cn");
5 Y- m1 G& m4 e7 D1 V, u0 A$ ^ - }( v0 a' l5 O0 v7 @# r0 l, v7 | ?
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