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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)
( r: ?5 Z- A1 ], r5 D- #include <ESP8266HTTPClient.h>
^# T/ F, L1 l3 e/ H( }" j) S - #include <ESP8266WiFi.h>
: S! h2 ~% z* M9 }0 \ - #include <ESP8266WiFiMulti.h>
. b* `! C' b% g5 a1 K - #include <ESP8266WebServer.h>; ]' h- C% Z6 q- G5 b! T- x$ O- P& |) c
- #include <arduino.h>
& x8 ~& N$ `4 k4 w, j& K1 { - ESP8266WiFiMulti WiFiMulti;1 x( Q9 j$ d5 Q9 p- n
- ESP8266WebServer server(80);; ]$ j5 u0 f2 d7 \" G2 d i
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& p6 Q7 S* D3 u+ {8 D' s - ADC_MODE(ADC_VCC);
/ h+ i, o H* d& F( Q - void setup() {
1 d5 ]% l/ I. k9 n- ~ - Serial.begin(115200);+ d9 y; P5 v- @0 T2 E2 U b
- Serial.print("\r\n\n");
% S+ A6 N4 a+ O- l5 @( H5 b- s - pinMode(2,OUTPUT);
, B [$ h2 A" C - // WIFI9 R& Z' s7 C: E
- WiFi.mode(WIFI_STA);* m& T( f4 h) J
- WiFi.hostname("Sparkle");
' E0 f/ {* e7 F1 c! ]. X - WiFiMulti.addAP("wifi ssid", "wifi password");
5 n# K' p' L) D: Q - int tryNum = 15;
" D+ I+ f7 E' s6 @- {0 F0 v - Serial.print("Connect WiFi");% ]# p: H# Y1 Y/ P( ]
- while (WiFiMulti.run() != WL_CONNECTED) {$ s9 Y. b3 }3 u" ]9 c- b$ q8 R
- digitalWrite(2,0);2 w$ l2 z3 j9 N8 h, y1 j3 y
- delay(200);$ o5 J2 H; |1 u
- digitalWrite(2,1);% K/ }# }5 Z; G) I3 \3 n$ R" k; n
- delay(300);6 S, F( G Y/ @2 {& T) O% b7 f. A* f
- Serial.print(".");
" l3 K: |: y1 J! R4 S7 J, D - tryNum--;/ i0 a. C1 s$ y7 Q/ p! f- `
- if (tryNum == 0) {
) B% k R. _6 J9 k+ B$ k - // 1min! }5 ]% t5 Q+ {4 h+ Y7 S: J3 t* ~
- // ESP.deepSleep(60e6);7 W% ~( r3 _! Q" h: D* R! X" p
- ESP.deepSleep(0);
: g2 Y, ]- l+ T: `; Z1 U0 { - }7 @: R; |6 A3 f( w1 t: l$ o
- }
9 l2 e$ E7 S: o7 G. s% o - Serial.print("\r\n");+ V0 v: @" j1 e
- digitalWrite(2,1);
/ r5 [. Z3 S1 j. F, w, t: Z - Serial.print("IP address : ");
\) Y# S2 Z o A- Y4 J - Serial.println(WiFi.localIP());4 P! K2 S7 `. S* Z4 h
- server.on("/", HTTP_GET, [](){4 H$ j* w! i( j& Y& @) H
- server.sendHeader("Connection", "close");
! _8 w7 E9 ~$ c$ |2 n - server.send(200, "text/html", serverIndex);( v+ ?2 M7 h* W! R/ w. l
- });* I5 L" w( {% Y, R+ O6 w( {9 W* |
- server.on("/update", HTTP_POST, [](){- ?0 r2 u w; C' E2 c
- server.sendHeader("Connection", "close");
+ v! b* S! E' y3 D6 `: F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' ^) K% ~/ w+ k z - ESP.restart();
0 f$ h* L( _# ^4 {+ V' o8 t - },[](){
5 g7 Q% Z( f, J& `" i, l - HTTPUpload& upload = server.upload();: e+ x0 ^9 w1 `4 w* |& q
- if(upload.status == UPLOAD_FILE_START){
, W" e7 N. r- B" H8 X7 m - Serial.setDebugOutput(true);
5 l! o7 g1 b( d2 i& U) ^ - Serial.printf("Update: %s\n", upload.filename.c_str());- B" M5 d6 |1 {5 M3 f; H; i; }; v2 f
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; f6 o2 d9 a* @" A) } - if(!Update.begin(maxSketchSpace)){
0 u7 ?/ g5 S! s8 h6 T: A! z. t: j - Update.printError(Serial);
% {6 A! {$ ^* Z5 | - }
7 T2 r g0 d% S+ E) B6 f. T - } else if(upload.status == UPLOAD_FILE_WRITE){
; {9 ?3 {$ d: D8 _; j ~ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: u8 j7 k1 H" I; E5 }: @0 k* g - Update.printError(Serial);
$ U9 P# R, D3 k* F - }
, |( q4 F& H6 M9 |/ ?$ x( ]$ Y. s+ q - } else if(upload.status == UPLOAD_FILE_END){/ f8 E- H" z; s3 }8 J
- if(Update.end(true)){7 t- p& y% x! w% y' S( z. v* N B
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ w) @* [& E* B - } else {
, r0 s* S1 B/ L5 \ - Update.printError(Serial);+ M8 B Z9 N- B$ R( h
- }
& X. m8 K! b/ J- @* ` - Serial.setDebugOutput(false);; w x$ f$ A' X& d: Z3 Z9 J2 E
- }
" g: k: c( c% y7 Q3 `; r( N - yield();
3 o O% Y& ]7 _9 n( ? - });
& ?) ~6 \; {# v - 1 O3 C9 J, U+ x& j. u% [* k
- digitalWrite(2,0);
4 B: e( \' T+ t - mainAction();) i" Y9 U, m& @$ @' M
- if (digitalRead(0)){ f- u& ^' o( ]/ u8 V4 F
- ESP.deepSleep(0);
! S% Y9 M+ S6 C" n# _7 L; _/ P - } else {7 o! ]: w, E% _5 {' N
- server.begin();+ v+ J" y- e0 k V
- }
2 r! ~ D# m' m8 j3 c, l. f - }
) p& ^8 U1 c$ y3 w0 d: m4 ?' x$ T - void loop() {
, Y; ~, @" Q& g; P4 [ H( a - server.handleClient();. R8 F3 t' }3 @) W0 i
- delay(1);$ s3 U) e- l( T
- }
9 l0 ^$ ?) I9 B. L% F% F* [) L# y/ C - String doGet(String url){
: l, \0 i2 f ~6 G# o% w - if ((WiFiMulti.run() == WL_CONNECTED)) {- M- |1 d( Y3 p: w" L7 r* M
- HTTPClient http;
$ X! s `4 r5 _4 Z2 J M - Serial.println("[HTTP] begin...");
/ [( y7 i7 p* X4 B; ^ - if (url.startsWith("https")) {' @# V+ _/ Z" L2 x6 x8 ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 ^) r# S) t7 c* C8 ~ - } else {: l6 U; _+ S6 g: e- C {/ Q
- http.begin(url);0 _7 @% T8 i% }7 v- D
- }4 K4 U4 v" D# ?3 N% N5 u. r
- Serial.println("[HTTP] GET...");. p9 D4 A; e8 x5 G. F t& [
- int httpCode = http.GET();
: n( m8 F$ ^0 e) b* g( {% V. g" n. P - if (httpCode > 0) {
+ s C0 s+ E" O9 Z; \( a) a - Serial.printf("[HTTP] code: %d\n", httpCode);
; |2 a* f8 \/ I! J) v" A - if (httpCode == HTTP_CODE_OK) {
' ?5 E& [/ U: b' i/ {( k, E0 O - String payload = http.getString();
" j. P% h) B! l; c) I4 D7 T - Serial.println(payload);
1 n( N# S/ S: j$ F - Serial.print("\r\n");
0 q, ~5 d2 N3 E8 d* g" o - return payload;7 C2 q4 q$ [+ c+ B+ c, m; @. J- L
- }
" H, J0 _3 P5 Z3 s9 K' p - } else {: K9 g7 [! Z% f S3 ]6 V
- Serial.printf("[HTTP] GET... failed, error: %s\n",. `, N% v, e, P
- http.errorToString(httpCode).c_str());
. T& J* f4 \, Z" N - }
0 V! u% z& o- ?3 Z) v - http.end();
# b6 U+ `1 z6 N+ O0 j - return "";
- u$ P) c0 L- ]$ f) Q - }% M2 B0 Q6 }9 H# j' {8 b) L
- } n, h7 o O. p8 z
- void mainAction() {8 @& K6 e! u w. s
- // 发送请求
8 `/ [! q" o% c( O5 p9 J - doGet("http://google.cn");; E$ `; v8 ^1 ~0 U& C
- }
$ G e% r5 ^$ M' M: r
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