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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)( o9 J! t5 B6 Q! g
- #include <ESP8266HTTPClient.h>
, ?6 S$ M. e8 X4 y - #include <ESP8266WiFi.h>
. [/ {) l& o! D - #include <ESP8266WiFiMulti.h>
8 o, z& U8 Y% i# S, }+ m - #include <ESP8266WebServer.h>
2 V4 n) p$ i+ J; R - #include <arduino.h>% M2 T+ L) u4 U9 C
- ESP8266WiFiMulti WiFiMulti;. g. m0 c7 R2 k
- ESP8266WebServer server(80);
" d1 x/ `4 g9 u; Q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* \5 G. L0 V; U$ |
- ADC_MODE(ADC_VCC);
9 M- ]* n1 n$ a3 y - void setup() {& P5 s ^1 K. U; U; }
- Serial.begin(115200);
* X! ?9 Z; J/ K8 V N - Serial.print("\r\n\n");
* H# f7 h- _+ i7 L - pinMode(2,OUTPUT);
9 }0 I2 h; u2 s# \( j+ w! O - // WIFI1 e0 A1 k3 T! ~9 s, {' N1 t$ @. o
- WiFi.mode(WIFI_STA);3 o# ]' L2 e+ z6 R3 `; ]
- WiFi.hostname("Sparkle");
3 V. u7 b! u* J7 q+ x - WiFiMulti.addAP("wifi ssid", "wifi password");
T8 k8 C2 k* }2 t4 K3 j - int tryNum = 15;9 _' L$ N2 Z2 W& ^! k' q
- Serial.print("Connect WiFi");0 h; x/ x- E" F" L8 q% E' i
- while (WiFiMulti.run() != WL_CONNECTED) {
* v- V) \% e$ e6 Q' N% I& Z2 M - digitalWrite(2,0);
/ v4 G" V8 a% ~6 L - delay(200);
( u; s# y. B3 Y; v- P - digitalWrite(2,1);1 y4 P& ^; z' x& A# ^
- delay(300);
1 M7 z, N& F+ c - Serial.print(".");4 s* J! \: T; |7 y. ~0 h6 c
- tryNum--;
% _9 V R8 R; q6 B& e! { - if (tryNum == 0) {
1 E# {& D+ b$ h# \6 @ - // 1min
* B1 g0 `3 u! \/ k6 N; Q% e3 J - // ESP.deepSleep(60e6);5 p/ ?2 X7 K c ], D$ ?
- ESP.deepSleep(0);
7 I( @0 y1 l% j1 W) H4 G - } A6 e2 G5 y$ X2 y
- }8 X* Z- w# h O m, K* }# C
- Serial.print("\r\n");9 P8 f7 [, } U+ }5 b0 K
- digitalWrite(2,1);+ }' {; l# ~0 i' d! N) ~; U2 ?
- Serial.print("IP address : ");
+ e8 X3 U; y& n - Serial.println(WiFi.localIP());, a# M1 G2 j1 e# R( S4 K& X' m
- server.on("/", HTTP_GET, [](){& V# z. q9 }* r) j* H9 G( K- M$ i5 H9 R' F, I
- server.sendHeader("Connection", "close");6 S( n9 w' w6 i: C( |* F' ~0 u# k
- server.send(200, "text/html", serverIndex);# i( o" ~2 h7 N9 I! S
- });' R* H0 L1 e. a& E! t1 h
- server.on("/update", HTTP_POST, [](){& h! ?7 c4 i: D5 w" Q2 R
- server.sendHeader("Connection", "close");
. G/ L: l9 C& H7 R& N) { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 ]; K5 ?) b& s8 c1 S
- ESP.restart(); g" q# b6 g) ?, I
- },[](){
( T2 T# b0 T' T; B) c+ E - HTTPUpload& upload = server.upload();/ w8 V8 T" _: F
- if(upload.status == UPLOAD_FILE_START){
7 C Y4 |- z- p" M) n% F$ s - Serial.setDebugOutput(true);& L" H$ J' q4 W$ M# u1 S
- Serial.printf("Update: %s\n", upload.filename.c_str());
+ O! M; G( U8 W1 v - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, u0 E+ R* K$ v0 h& y( J, z! p - if(!Update.begin(maxSketchSpace)){
, F) L# l4 I9 C& [) B. m: L - Update.printError(Serial);- {: M. ?' b4 H. q
- }# z ?; c- E$ U" O: I
- } else if(upload.status == UPLOAD_FILE_WRITE){2 i7 ]; t" z/ p# G% N6 N- v
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, X# m# w# ]8 M& p4 x - Update.printError(Serial);9 C% ~7 e" M5 |* ]
- }
) g Y" y9 _: O; i7 J% S - } else if(upload.status == UPLOAD_FILE_END){( j' T( J2 e( _
- if(Update.end(true)){. T/ w B* q3 m6 h6 _' I k' |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! ]2 l7 H0 D' g: |4 o {. l
- } else {
& }7 J" B( W Q% j& e, [ `6 @ - Update.printError(Serial);
, ]8 ], V* l2 ] - }
) }! o- y; s) t& F) l( f. x9 |$ T - Serial.setDebugOutput(false); e7 j9 K$ K& q. G7 ^% J0 w
- }
4 M8 D- f" |# R! p/ W# Q1 B - yield();% O' ~! y j e/ C! S
- });2 J) {, [: Y1 o2 w+ X
-
: k, b( E: l2 m! Y0 e7 K( t - digitalWrite(2,0);9 \5 h. e [( A! d# j
- mainAction();
8 |; q5 e% f6 K. t - if (digitalRead(0)){
/ e6 Y: S# c* _, T G - ESP.deepSleep(0);) }6 z. A) @8 x
- } else {
2 Y1 w% w1 i% Z% X# B" Y( U - server.begin();4 Z) P4 K% H2 U1 w6 b
- }
9 @2 J% M& l& @ - }1 v6 @# Y. i" V: z/ |' B
- void loop() {* x5 ]5 M) l7 M6 W0 {6 t
- server.handleClient();7 j7 C2 x6 [0 [$ B0 j" E% A, Y: G
- delay(1);, W2 J T9 y+ c" B
- }
$ {) K# N ?1 z2 r! l# v - String doGet(String url){
, y' _0 t9 c# l3 c( L - if ((WiFiMulti.run() == WL_CONNECTED)) {
. [4 ^! W6 F, A1 y3 K - HTTPClient http;
! V2 F1 V$ B/ M5 N E3 A - Serial.println("[HTTP] begin...");
( l1 g Y% E$ \5 M - if (url.startsWith("https")) {
5 \8 c. H$ p# P! K - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, B' t1 k$ P3 D' F' }
- } else {. P- t' K0 l& |1 t: B
- http.begin(url);
3 d3 h5 h( @* f3 S! f - }
! h% Q4 e7 c6 s* ~1 q9 e - Serial.println("[HTTP] GET...");- e$ X4 K/ g- ~/ Y X& E
- int httpCode = http.GET();: b% ?4 g4 J1 q( e' |/ z( S
- if (httpCode > 0) {
4 X6 v( l# z1 R& Q7 D - Serial.printf("[HTTP] code: %d\n", httpCode);
' o( ^' M% {/ ]1 j7 b) Q5 A5 Q - if (httpCode == HTTP_CODE_OK) {
. O# Z* F$ z1 {) t. _9 O - String payload = http.getString();
3 t1 i" }( ^) W7 }- l3 D, r - Serial.println(payload);: t" k$ W* N, f& ~- M# X
- Serial.print("\r\n");3 i& u( H" c% j( [' i0 m
- return payload;
, `2 o7 \" l. n# O - }
. @) Z! J/ T7 s: e! `; n- \- M - } else {1 G! N1 m9 k+ d1 Z6 g1 S: {) d3 v
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 W# K' f' O! F2 ?. ` - http.errorToString(httpCode).c_str());% f. v/ ~$ E9 l5 d/ g5 ?! ~
- }% Q! r; f4 i! e. m g
- http.end();! x% A8 \' x" F; j( S
- return "";# ?" h: e: _/ Z' {' }: @
- }/ @" \$ ^9 C: i- }+ s
- }
) }" Z: Y, B2 N+ o" p6 Y, p+ Y - void mainAction() {+ o* m; U- {4 d: [2 f5 K4 u
- // 发送请求
9 T( N5 r( G# j: P3 q. V - doGet("http://google.cn");
- J# Z8 M( V3 z% ~ - }
7 z0 V. R) s% E7 ?) y! X+ c
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