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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)
" P8 ?0 L3 d3 a- W) T- #include <ESP8266HTTPClient.h>
5 V, {$ V* p+ ~+ f5 i. D - #include <ESP8266WiFi.h>2 G8 C' e/ r% M, z, l, G! s* X4 {
- #include <ESP8266WiFiMulti.h>5 V7 {2 N# t4 p
- #include <ESP8266WebServer.h>! j8 h4 K& x9 k
- #include <arduino.h>( h& C, i$ [) b& r3 d; T2 o6 ]9 p
- ESP8266WiFiMulti WiFiMulti;0 O. |- W- I7 j$ A5 D1 f# }% T" p
- ESP8266WebServer server(80);
% n* \' S0 @9 n x, Q I% v - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# n' H% |, s0 I0 @. S' L9 x, l5 d
- ADC_MODE(ADC_VCC);
' y3 R* k4 ^" V9 |/ Q' M - void setup() {/ F1 m. `* g3 {% m" L$ d5 U
- Serial.begin(115200);
5 L; j* x, X& G: \+ I - Serial.print("\r\n\n");: C# m- z) U% Q0 c' l
- pinMode(2,OUTPUT);
$ A: R/ X2 l) }, e l* l; E2 s - // WIFI- x; p9 b8 g0 v
- WiFi.mode(WIFI_STA);/ s9 p6 {( c# G/ p( X" I: Z
- WiFi.hostname("Sparkle");& U0 p H/ ]: M
- WiFiMulti.addAP("wifi ssid", "wifi password");3 V% W7 c/ I- [" d U2 }! m
- int tryNum = 15;
3 T8 F: E5 R& x4 n4 Z. _1 u6 i - Serial.print("Connect WiFi");
' H. c" M1 s4 x& U. M - while (WiFiMulti.run() != WL_CONNECTED) {
" P& N5 q8 |; b3 O8 A" l - digitalWrite(2,0);
! _! g% F2 [1 o+ b z8 s6 l - delay(200);
v F& b+ S8 @0 a$ k( E( R - digitalWrite(2,1);% W+ J8 R, b: t! m0 E
- delay(300);4 s- R, F. B3 Z; O# A0 W
- Serial.print(".");
) f* q6 D2 Q% k0 x! ^6 ~ o+ l - tryNum--;6 B+ h P% r0 Y( y m0 Z
- if (tryNum == 0) {
4 \( _6 g+ d' L" l% F _ - // 1min
* O# D7 h% f2 _4 i' H - // ESP.deepSleep(60e6);
' K; _$ Y# ] N5 W - ESP.deepSleep(0);$ W5 N' X( i' w- ^7 k( |3 y
- }
( w( v# p; r4 Z5 M; J3 E6 h - }3 A- L: T2 t( W7 S4 Z
- Serial.print("\r\n");
8 r4 s. k7 c! ~% J* H& }/ C - digitalWrite(2,1);
: I4 D+ F3 S8 L* F' @* _2 k - Serial.print("IP address : ");
0 ^+ f, `5 y! d5 f$ X: ` - Serial.println(WiFi.localIP());
. n5 L4 f2 Z; z3 F$ M - server.on("/", HTTP_GET, [](){
/ Y% \+ U& S" p! ]5 N( `3 U - server.sendHeader("Connection", "close");
! E8 L; }- j: ^4 [& q! ]4 N$ o - server.send(200, "text/html", serverIndex);
; Z. P7 M' J/ \& M: @$ r - });3 X6 J5 x3 M: i1 b0 a! z6 i9 y: S3 P
- server.on("/update", HTTP_POST, [](){
0 \4 D8 ]: g2 C; |5 F$ q - server.sendHeader("Connection", "close");: @6 E0 L( O9 C6 n8 q) l3 {% f; x
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. { q! k g8 j9 A6 J! ^7 U - ESP.restart();
: M, `2 z' @) d! i, G - },[](){% G S& q8 Q2 Q' O1 h7 U" |; {
- HTTPUpload& upload = server.upload();- ?9 l2 k! B( v
- if(upload.status == UPLOAD_FILE_START){* i: ] P, P9 ^
- Serial.setDebugOutput(true);+ I4 O6 W% i# x7 j
- Serial.printf("Update: %s\n", upload.filename.c_str());9 |; h/ w) {/ H1 d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( T7 G3 [; |2 Q; s* Z - if(!Update.begin(maxSketchSpace)){' |6 F8 A( l. p( S7 e1 _
- Update.printError(Serial);
' Q2 e5 g* {9 [) a6 S! g5 |) ^ - }4 M6 M& F' s5 f" ^2 K+ \5 a( W
- } else if(upload.status == UPLOAD_FILE_WRITE){; }9 x' g0 o& d' H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 o- H. K8 H: x3 r( a$ P' B- w
- Update.printError(Serial);
' v! k; _1 U, f. _% u7 F - }
! I. h, w2 w6 J; ` - } else if(upload.status == UPLOAD_FILE_END){ @& {* J* ~! ^ z3 F b; I
- if(Update.end(true)){/ ]! I3 H7 d: @( A5 x
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: y2 q3 j* C5 n1 ]* L: g - } else {7 R/ V9 ^* U( U5 j% Q r0 \
- Update.printError(Serial);
) W) D, @; k( N2 }) ]7 Q1 E - }
# p+ c e) \; v - Serial.setDebugOutput(false);) \" H& {' t |/ B& k! m) Z! U7 Y
- }
& s) I0 I3 X6 W4 P" }3 D - yield();
: D+ }6 r: X) M+ s/ o - });
f# u4 n' e3 F" L r7 e - 1 T$ C3 f/ r+ `5 B& f. u
- digitalWrite(2,0);8 x I6 V% }1 }$ | N5 B! r9 P; p
- mainAction();
$ Z8 M: {8 n3 @* @0 T2 N2 V - if (digitalRead(0)){+ `# e# Z3 c# t* R0 E; E
- ESP.deepSleep(0);
0 P. z5 y0 A' W; O$ g* W; V( V - } else {7 h0 f q1 R" B9 S- @3 i* r
- server.begin();+ w* j3 L `, p: s* N
- } W, f4 n$ o3 t8 L
- }( o, U- o4 Z! I; S
- void loop() {
8 _4 J" L6 x1 r4 I - server.handleClient();0 Q3 A* ~% Z; ?* ^
- delay(1);
# Y* i) O* L y" e8 h9 |" ^1 d# l$ x9 k - }( y2 h" h. h2 d
- String doGet(String url){
5 o; k' C0 X$ F* A D: u' I/ I& z - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ H8 y/ n7 {* [5 I1 q. b4 p - HTTPClient http;3 X+ A2 z, z4 p/ ?6 q
- Serial.println("[HTTP] begin...");& s! {8 ]9 c* x7 z' F5 G
- if (url.startsWith("https")) {& |" j) s5 H; E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 Y( r: F/ Y4 f1 @
- } else {0 C5 c4 ?1 {- a/ A" \5 q: g* {& d# @
- http.begin(url);! ~' C( Z6 u& L A
- }# l6 [. R U3 A' I2 g
- Serial.println("[HTTP] GET...");
$ P( w1 t# ?$ `) B R8 ? - int httpCode = http.GET();- N6 H) b* K7 C: Z+ X( k9 h
- if (httpCode > 0) {: T4 i0 x7 p' I
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ Z. }* D$ c& E) ] - if (httpCode == HTTP_CODE_OK) {6 U3 D8 ?! n$ ^+ h7 g- D
- String payload = http.getString();, s1 P) t/ v3 I* E( E0 @# Y
- Serial.println(payload);: Y- F8 ~! m) o& t0 i/ f2 e
- Serial.print("\r\n");& V. L6 K s' X+ M4 p
- return payload;" X8 k% ^ ?8 G9 q; ?1 c6 _
- }& n% R* x6 K/ J6 O0 v
- } else {, e. V& k: B) A( ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",/ t9 W3 R- E. R- L
- http.errorToString(httpCode).c_str());
& d" d9 U& {2 ^2 m# u* U - }% ^0 Y: G" N# Z7 y
- http.end();
u+ N. I/ ] p - return "";0 t: N$ U! M' h2 S
- }' b p2 ~) l! Z0 T5 x
- }
5 b* ? J) u \4 O3 A7 H - void mainAction() {9 U& Z8 N9 x- m( G
- // 发送请求
' _) d! Z% f" `4 b, D - doGet("http://google.cn");
* y* P* z$ Y: n* @ - }
8 _- E8 E9 R" T ]- ^8 \
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