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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)4 u. P! c P* J5 d8 U- x' u
- #include <ESP8266HTTPClient.h>1 d. T8 \( Z# |4 j+ [6 V5 T f
- #include <ESP8266WiFi.h>
# J% g5 F! d$ r6 }: l - #include <ESP8266WiFiMulti.h>; u" v! Z( y: X @, R% ?3 z5 Y
- #include <ESP8266WebServer.h>
: C2 M9 E9 ~& e1 n- Z1 W% x - #include <arduino.h>, s1 a" j& C- a1 b& O8 J X. m/ h
- ESP8266WiFiMulti WiFiMulti;
1 ], |1 ]) O6 j1 e: `- J3 h' g - ESP8266WebServer server(80);6 D1 d. o9 ?. `3 u3 g+ Q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( J) s5 k6 q E2 w, M& z) f+ x
- ADC_MODE(ADC_VCC);# x5 L! G3 }0 Y8 I0 d' Q( h
- void setup() {
1 l% t) T. e$ g+ _. U - Serial.begin(115200);
6 ~4 j' c" C: J - Serial.print("\r\n\n");7 k* L0 o$ E# q+ q
- pinMode(2,OUTPUT);
7 C, Y2 H+ q* v# D6 h - // WIFI' Y$ I* }1 ]) }) D: D
- WiFi.mode(WIFI_STA);
. l6 F d. R$ {2 X+ @0 R - WiFi.hostname("Sparkle");
0 a" C* P% T, F8 c: ~! A+ I' Y& f, U - WiFiMulti.addAP("wifi ssid", "wifi password");
" _; E& f0 ?6 g1 N t - int tryNum = 15;7 D$ W# r# t: T' n! E' e3 l9 k
- Serial.print("Connect WiFi");
; ^# h" U5 m$ y) y - while (WiFiMulti.run() != WL_CONNECTED) {& w) L+ @0 ^* p# v" S
- digitalWrite(2,0);
k- i, p' ?! m/ K. K9 X L - delay(200);
( f+ E) ^4 Q, f2 |, y - digitalWrite(2,1); E2 ~8 Y- m2 l
- delay(300);/ p! l- }5 M0 |& L$ L/ ]9 Z" o- }5 q% T
- Serial.print(".");
/ a2 y5 {$ q9 d( X* a - tryNum--;! M0 C3 [5 T W0 G/ P2 G
- if (tryNum == 0) {
5 o3 F# s' s1 R1 r6 ] - // 1min
0 V0 o# ?0 }4 y - // ESP.deepSleep(60e6);5 ~# o# ]" K( W9 B; M
- ESP.deepSleep(0);
" \7 z$ L" ? u/ H v4 N, t4 { - }
/ U8 b: ^7 @1 L6 \. i- N - }5 o' v/ @ E" |2 W6 p; b* ~5 F* K
- Serial.print("\r\n");
$ T8 W8 x, _3 i - digitalWrite(2,1);
* ^# O9 \ A* X: N+ l - Serial.print("IP address : ");
1 s4 ^3 P6 I. O) c( q- z/ R - Serial.println(WiFi.localIP());
X/ W L2 o6 _4 e - server.on("/", HTTP_GET, [](){
4 v- G# b t! h' G2 Y6 P* ] - server.sendHeader("Connection", "close");0 e1 l; ]% W D: m$ b+ V9 P* f
- server.send(200, "text/html", serverIndex);3 K' \& Q! R9 x1 {2 z4 H
- });
6 a8 n9 D" t) y - server.on("/update", HTTP_POST, [](){% `+ V3 ]* t+ }' X+ {
- server.sendHeader("Connection", "close");
% b3 v/ \* l Q4 D, q5 y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
r/ g$ [" ]( j9 f. Q - ESP.restart();
2 @2 \+ p1 }9 H/ d4 r4 h' b - },[](){
! c1 n0 I( r1 v& M1 r6 K - HTTPUpload& upload = server.upload();6 _0 s7 b% X" l4 L
- if(upload.status == UPLOAD_FILE_START){0 l( N% p( N0 e0 s, ~
- Serial.setDebugOutput(true);
4 }0 y" o8 q4 |% D9 [# ^ - Serial.printf("Update: %s\n", upload.filename.c_str());) D. e5 k; _! Q7 D2 }9 {9 b- s/ r3 E
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% i2 m* s" ^( ]& |
- if(!Update.begin(maxSketchSpace)){
6 `9 ?3 |+ u- C - Update.printError(Serial);9 K! v+ g2 ~0 o7 H8 ?6 e
- }
) t9 u5 L( r# |5 Z9 |' J4 }( z - } else if(upload.status == UPLOAD_FILE_WRITE){% d. H' |; z2 ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ V {2 `* G8 Y. W
- Update.printError(Serial);$ X6 z; }7 M* g2 V; r
- }$ ?# v4 b+ e7 x& J
- } else if(upload.status == UPLOAD_FILE_END){
- k- x( b5 i' \2 @ - if(Update.end(true)){' \; u( F! a) ~' A8 _/ G
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 r3 v) a( R4 D, G2 m
- } else {) p) E9 o# o0 }# ~7 {
- Update.printError(Serial);& L3 ]4 F* j4 f+ }/ M5 i5 B
- }
/ i+ j6 F2 p# |! N: v8 m# f - Serial.setDebugOutput(false);2 N5 q: ~2 O+ N5 h
- }
, ]( U4 c) k$ F$ b8 Y3 q5 ]0 T& L4 i - yield();
+ e5 O" q; _2 `6 q6 G" r - });# X5 r9 x+ ?- g$ U3 o
-
- k9 \# C5 M9 N" t- h, R4 i - digitalWrite(2,0);
+ B' @$ |! N' s! a* | - mainAction();! ]& b6 z# N& l* h J0 k* N$ P# M
- if (digitalRead(0)){
: g% ~0 w& t) N3 j" o: T - ESP.deepSleep(0);
+ t+ \" A G! {0 P8 h/ g - } else { O. N# T; N( ^4 h) J) F! |
- server.begin();
, U! ^ f4 u( Y6 ~1 E* x; [ - }- p3 S( j0 @, Z0 o
- }! X" J4 ~- p v' n8 Y$ E; H
- void loop() {
3 Z+ k0 ]: b- e1 n - server.handleClient();
H, R5 V z# S3 F* I' I - delay(1);
" G' b8 \% J* a. S6 S# { - }- j) N8 j; E, @/ a2 P {8 J# N
- String doGet(String url){$ W5 w$ k9 g9 G g
- if ((WiFiMulti.run() == WL_CONNECTED)) {
' U5 W! r( i( O/ @6 s7 L* H# d - HTTPClient http;% U( D7 \+ R8 H. Z! C
- Serial.println("[HTTP] begin..."); A8 N/ Z+ n$ E. U
- if (url.startsWith("https")) {
2 E, z' ?8 M' T- I+ U; R* \ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. R; G% |- o, w( @; Z9 u$ l- `
- } else {/ \9 ~! `' ^. A' R2 Z
- http.begin(url);
O- K/ n3 ~+ R1 }$ F6 ` - }0 R2 }" U9 u# m: S Q
- Serial.println("[HTTP] GET...");
/ o+ O4 ~( i2 v- d' v - int httpCode = http.GET();! F& S, F1 h/ ~ g) ]/ F1 t( E
- if (httpCode > 0) {
! a! C0 a( M& N. h - Serial.printf("[HTTP] code: %d\n", httpCode);4 {% n# M* ?& Z
- if (httpCode == HTTP_CODE_OK) {
$ i5 E# }) E5 a: x9 _: k( J - String payload = http.getString();2 I6 A$ g# z; [* | f. `
- Serial.println(payload);! I0 i: N6 i: q
- Serial.print("\r\n");
( \! S5 u" G3 C$ B+ o$ Z/ M - return payload;! C0 a! D5 ?/ y) v" D& y% m
- }0 d/ l) O4 k x0 M+ ~
- } else {
* M. M. x9 v3 X; Q8 { L - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 g4 Q- ?# |! l0 u9 A - http.errorToString(httpCode).c_str());
; `2 x9 s' L/ P6 R2 t# c' v- C - }. u8 b5 T9 U0 i" I
- http.end();, g3 R( q5 P" {. O9 ^5 o
- return "";2 }! h9 I8 P% D1 y1 v
- }
2 Q) z- R1 V$ u! \1 V# T - }
! i" V1 M: h7 @% b - void mainAction() {% c' Q( R1 p- g9 X! p
- // 发送请求! Y9 x2 s1 y1 t& b0 d$ z
- doGet("http://google.cn");$ I, `, a2 S. F2 c" j
- }
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