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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); j* ]! p/ F$ k- S5 _
- #include <ESP8266HTTPClient.h>
# u8 j2 z* D2 s - #include <ESP8266WiFi.h>
7 w. E ~! X5 {/ c: d - #include <ESP8266WiFiMulti.h>
9 c5 y$ D0 p! R7 x, L' J! _# s9 v" { - #include <ESP8266WebServer.h>
8 A/ I" G3 i* s: H; t5 B - #include <arduino.h>1 Z! Z4 K C* \# ?8 S
- ESP8266WiFiMulti WiFiMulti;3 m3 q! y8 w, d0 B; d; G. h
- ESP8266WebServer server(80);
! C9 s* i1 D3 Z( q! P' m& ` - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& s5 \7 }) x0 }6 R" s5 w
- ADC_MODE(ADC_VCC);) f! R. v$ D; C! Z9 f# t
- void setup() {6 ~+ j) Q: R- o K. n
- Serial.begin(115200);
z8 J' Y7 \, c9 r4 p" I - Serial.print("\r\n\n");
, h$ ^% X% C( k: n - pinMode(2,OUTPUT);; X% p/ z/ E! L3 h6 `9 W) Q
- // WIFI. k- {% z. d. ]/ m9 b& M" D
- WiFi.mode(WIFI_STA);& y) E2 F) ~! n5 _8 j b6 O- W
- WiFi.hostname("Sparkle");/ q- v) ?+ l6 Z& f
- WiFiMulti.addAP("wifi ssid", "wifi password");
/ `8 D) w- ~+ K7 Y - int tryNum = 15;* Q5 ^$ w) j+ S6 }- K
- Serial.print("Connect WiFi");3 W# X7 b# ?( S( d& a
- while (WiFiMulti.run() != WL_CONNECTED) {
' r4 [" A: `) h3 d- f8 P - digitalWrite(2,0);
5 ] C" V+ Z" r - delay(200);- L+ b6 x/ d9 ?* b
- digitalWrite(2,1);
6 Q' Q+ s; J, \7 O3 _ - delay(300);
# d) {4 ^# i8 o. ^$ } - Serial.print(".");
7 ]! V+ A3 R7 ^) G, V! ~( U/ Z, A - tryNum--;
- V" M$ b5 R, P - if (tryNum == 0) {
3 `! A: z4 b3 j5 S6 P* j5 ^ - // 1min8 }5 V" }6 w( L) T8 F
- // ESP.deepSleep(60e6);/ k) p1 \; F0 W* R+ ^
- ESP.deepSleep(0);. E6 m; a, i# S: g" }
- }
$ W- C- W t+ q( R5 a9 t; K( A - }
: R# S9 o8 ^0 F/ M/ ` - Serial.print("\r\n");
& C, q6 ]9 H, }( I7 w3 f) |) u - digitalWrite(2,1);
9 O" X' m" Q N' z7 j' t - Serial.print("IP address : ");
( C& l) ]5 l" B9 F) u - Serial.println(WiFi.localIP());
2 E* K' N0 Q$ T, k$ g" r( c - server.on("/", HTTP_GET, [](){. y' O* X0 Y" L( F
- server.sendHeader("Connection", "close");! M: d! ?+ e% }# t
- server.send(200, "text/html", serverIndex);
+ _! |4 N8 V, X+ V - });
, n: b' w" ^7 z% k - server.on("/update", HTTP_POST, [](){) S( R; w7 y" ~9 B! x& z/ |
- server.sendHeader("Connection", "close");
: v1 j" P6 E8 v$ B/ o6 S - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 o$ Y1 Y6 d% c3 S6 A8 P! { - ESP.restart();
: z C2 c' M$ d; B1 k - },[](){6 J1 g& M" a5 K3 d7 S, G3 W
- HTTPUpload& upload = server.upload();
) j8 X3 ~! n2 ?9 ?2 H - if(upload.status == UPLOAD_FILE_START){' q* V; d- P$ }- R3 M1 ~7 Y: g
- Serial.setDebugOutput(true);
* C4 ~1 Y7 u4 C0 _! ^$ f - Serial.printf("Update: %s\n", upload.filename.c_str());
7 N4 V4 o( G/ T* ~; v# l - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
R: K. i5 F4 ^, D4 n - if(!Update.begin(maxSketchSpace)){
6 H5 [4 s& R: ^/ `; X* Z+ @1 ] - Update.printError(Serial);0 W3 `# S" R, R6 }- T
- }
. y# T0 H' I* l6 m% T - } else if(upload.status == UPLOAD_FILE_WRITE){$ C% v0 @8 [$ ~' {& b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, V* d; q+ ^, m1 [$ y& e& N
- Update.printError(Serial);1 B( G- j+ G( }# l' m7 J e0 P7 w
- }
- x/ a# _, E5 @. L$ r" B - } else if(upload.status == UPLOAD_FILE_END){) c) A( u$ S- q7 Y# K' L0 _0 M5 S
- if(Update.end(true)){( E! |. I1 `3 `
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. \+ K; i* B, g8 u0 [+ V- I2 P - } else {
9 x% w# h5 G% t6 U2 G - Update.printError(Serial);1 ~* Y: o' ~! r1 F+ n0 X3 `
- }0 z( k p2 P% w+ v" D
- Serial.setDebugOutput(false);/ {# H/ w8 ~7 F
- }
7 x2 c0 J% f( v5 n9 j - yield();/ r; K& C& P5 M9 u! D
- });( T+ z; q) t- Q4 }3 `, E5 I
- 6 k& }) b( P+ F* `( o8 r. p- R
- digitalWrite(2,0);. G- F" {$ ?, {5 r# P4 _
- mainAction();
4 @, S7 r. n2 U" c. Q: T9 W - if (digitalRead(0)){3 w" E* ]/ c5 q$ I; m- W S z+ g
- ESP.deepSleep(0);8 N0 I7 ^2 w* J1 M5 H* e
- } else {6 z9 b' d5 O, b% a$ [+ ?
- server.begin();" P: l6 y( `2 o* p3 r
- }
$ [- J5 J W3 h2 f. |- i( X - }
; K( @) e# h4 Q - void loop() {
; {" x6 P# m+ c! S# ]: j - server.handleClient();
: a: N8 D S8 G. p - delay(1);6 [8 X9 Z% ]2 C( Q' M
- }
7 P/ L) n( I4 l- X9 f9 U - String doGet(String url){
) b* d) z# }" u# k - if ((WiFiMulti.run() == WL_CONNECTED)) {6 m8 C Z8 Z( m7 |' t2 b; Y; Q% _
- HTTPClient http;
r# F. K3 i% E1 A; v, U - Serial.println("[HTTP] begin...");- o# ?9 y3 N0 t/ }4 p2 h
- if (url.startsWith("https")) {
9 v% P! c9 F8 F& z& i - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 I, f2 _/ s, P9 v* X- ?0 v
- } else {: l2 s0 i1 e( A% E' l0 D0 n
- http.begin(url);& m2 w- M6 K6 @. B: Y
- }
# ?6 A" _& f( T- ^4 i0 ^. A% u - Serial.println("[HTTP] GET...");
& I8 X0 G1 U: M/ `3 C3 F; s: P - int httpCode = http.GET();1 J6 t- C& g9 m) _, ^
- if (httpCode > 0) {
" _( o' J' ~2 O) D: i) z* U+ ` - Serial.printf("[HTTP] code: %d\n", httpCode);
2 P) F! `' T) J( r - if (httpCode == HTTP_CODE_OK) {
; T @0 U5 N' m0 i0 y- Z1 L - String payload = http.getString();; ^$ `( w& e! t8 z, @& V m) V
- Serial.println(payload);' ?5 @- c" c! U/ n1 _5 z5 e
- Serial.print("\r\n");
; B0 p6 p7 {& A/ m5 d( c. e: L - return payload;
8 v, y U+ x0 w - }
* j! E* Z \$ o& V8 y5 g - } else {
: c3 B/ A+ Z5 H1 F - Serial.printf("[HTTP] GET... failed, error: %s\n",
m5 d& z+ ]/ W# l7 Q9 F - http.errorToString(httpCode).c_str());
$ q' j5 Y* [0 k- j( ?, g - }
! J" i/ }2 W2 H# U+ o8 |9 c; \ - http.end();
% B% z$ X0 e4 ` - return "";
) n$ ?. h( j6 V6 \' V - }2 f/ x% I; ]1 {( C* ^- x* U
- }
u" m4 K$ ^) Q9 Q) O' R - void mainAction() {
0 P- U8 `4 F/ P0 W - // 发送请求. D0 l8 P$ C7 ?6 b# E' ?
- doGet("http://google.cn");
: U @- I5 N a9 M" Y4 ? - }
" J: I1 Z Q: h$ f- z2 q
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