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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)1 Z( J ?& I5 o4 @! h
- #include <ESP8266HTTPClient.h>( @1 P- @, L N$ T; p
- #include <ESP8266WiFi.h>
& @6 u+ i; C7 J5 g - #include <ESP8266WiFiMulti.h>
5 Y3 N+ R& M% C - #include <ESP8266WebServer.h>2 [6 [" Q9 o/ w8 I9 l; m5 \5 J( q0 `
- #include <arduino.h>
, [8 @- W: L5 i0 R! m9 m! i - ESP8266WiFiMulti WiFiMulti;1 Y B4 V# m: E; L3 X
- ESP8266WebServer server(80);9 {8 e+ e) |4 r. x+ B
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 g6 s. {# O( b) A/ F+ P - ADC_MODE(ADC_VCC);# ~4 f: {4 z2 U, S2 G3 P" j2 L& q
- void setup() {1 R9 d, s. P# [8 O5 o
- Serial.begin(115200);
: m1 d3 Y. x2 j& [; t - Serial.print("\r\n\n");( Q8 D& I& e. O
- pinMode(2,OUTPUT);$ @/ D' a1 z; r/ Y4 U( k% c
- // WIFI
6 ]' |+ v9 L* }8 I - WiFi.mode(WIFI_STA);& j" a$ `7 G( N/ e$ H8 ~
- WiFi.hostname("Sparkle");
) s6 m: E4 \% [$ s9 } - WiFiMulti.addAP("wifi ssid", "wifi password");
( `# ?+ w" k( q" ? I - int tryNum = 15;
, I( T5 P; b1 s( D - Serial.print("Connect WiFi");; f$ y+ |: I3 \4 |# m
- while (WiFiMulti.run() != WL_CONNECTED) {
6 O6 {4 n; X# c0 O: J1 \1 ^ - digitalWrite(2,0);
: M: P( K/ n: |8 {( _% G4 |$ W3 C - delay(200);9 I. J+ x4 t# U. f* n
- digitalWrite(2,1);5 T0 D7 A2 ^* ?7 E* z
- delay(300);* E# A8 e$ ?5 s$ ]5 M% X Q; D6 h( S
- Serial.print(".");
, A; _1 h! H c5 [ - tryNum--;( _: @$ B0 m. }& u) v
- if (tryNum == 0) {
! W# _. E& d5 b, I2 d7 N+ \) P - // 1min" T) W+ j% e# V% L# B- h
- // ESP.deepSleep(60e6);
. h9 c/ K/ y4 H: l+ L9 U; h5 F- ^ - ESP.deepSleep(0);
4 s6 P: T) E1 w' c. n8 E - }
7 ?9 Y# N; [" Q, t' _4 b! x - }( l$ A$ z" E+ t+ u z: a5 P
- Serial.print("\r\n");
* j& O+ b- w0 F - digitalWrite(2,1);
! F& {2 w" l' D S% F8 r% \8 N, G! _ - Serial.print("IP address : ");
( {- x( r) a- B, ? - Serial.println(WiFi.localIP());/ s! V5 I0 R( B4 Z$ J: ]: A) M9 u' v
- server.on("/", HTTP_GET, [](){7 u; ]5 D4 X4 O5 |# a7 U
- server.sendHeader("Connection", "close");
M" d- o2 {& _ - server.send(200, "text/html", serverIndex);' Q9 Y9 P$ B/ i$ C* V, R' E
- });; r' Q/ j' I1 X7 U+ t8 v7 v& v
- server.on("/update", HTTP_POST, [](){1 |3 K# t, \3 T; j- n
- server.sendHeader("Connection", "close");6 l' Q3 x" K# O4 |
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& }- B6 o( Z: a+ X4 f7 i - ESP.restart();
- Z* g& v/ j' a6 b6 W: R3 p% B: E - },[](){
6 P+ [/ \5 ?: ~; r1 ?5 J) t! ] - HTTPUpload& upload = server.upload();, b5 a$ n+ q- |
- if(upload.status == UPLOAD_FILE_START){. A1 c$ d" }+ e) K, C
- Serial.setDebugOutput(true);
$ j/ c$ P& B0 X$ ^ - Serial.printf("Update: %s\n", upload.filename.c_str());
6 z8 a$ U# Y1 [! g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' |0 ]* @+ P; d3 `/ [( o$ Y - if(!Update.begin(maxSketchSpace)){4 @0 L* u# `! O) S8 w
- Update.printError(Serial);
, O! @1 M' K+ q, D4 L - }) _7 w: n- V( ?" C
- } else if(upload.status == UPLOAD_FILE_WRITE){
; F( P' |5 W5 B - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) F$ v$ _: ^. X% z& ]
- Update.printError(Serial);
2 N7 r( @. `0 Q9 y6 `: ` - }% X5 J3 V8 ^: J6 N. ]; b7 X
- } else if(upload.status == UPLOAD_FILE_END){
. |" c, E" s2 f% J) G) ~3 j - if(Update.end(true)){. A) `, T; x/ t9 h% _# q6 }7 l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 x4 x+ M& x( c
- } else {
4 n( I0 U8 C. B - Update.printError(Serial);
" h! U9 X E$ Y4 J5 m - }8 ^+ S* D8 Z1 ?- G c6 t
- Serial.setDebugOutput(false);
. o" _, y) t: k8 t - }
& V. W. i3 A" Z0 o1 _% S - yield();
. b1 @ P% y* I* I* Z - });+ Z; y) r4 p3 n! g
- 3 O7 l. L/ _' ^5 K( ?( p" U1 M: u% V
- digitalWrite(2,0);+ `) { x0 y( b$ q7 [, m- S
- mainAction();% x& {5 B& x V& e
- if (digitalRead(0)){ c4 g7 ]2 F# a ?9 ^: F6 c+ @7 [
- ESP.deepSleep(0);
, V: _- G& a$ e7 N1 Q - } else {1 p6 r# p- S% i/ b2 `. o0 F) {7 S
- server.begin();
( R8 `9 q7 d6 g+ {" x% _1 C - }& M6 A% H1 x/ \. F% _5 D* X) E) N
- }- u; g8 P. |: X# K8 a" v) P
- void loop() {
9 k% C6 k9 `# M. F; L - server.handleClient();
# {- B8 Z: p1 w+ M5 t+ b9 o C - delay(1);6 e J7 X, l5 B F
- }% d1 U8 O. y. M: C6 L9 N d
- String doGet(String url){) d( g; h y/ c& `$ @, y
- if ((WiFiMulti.run() == WL_CONNECTED)) {- s7 r) n4 {. A2 O( S" E
- HTTPClient http;4 o- U, m/ Z+ \# k. j/ p8 Y1 P/ p" u
- Serial.println("[HTTP] begin...");
" D% A* _9 M! f2 F; v, r - if (url.startsWith("https")) {
! F$ ^3 i* N0 h+ g% w3 f - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. W7 R0 h4 r# T( t' |' O) w8 N4 m* y
- } else {/ M( F5 \9 R8 t& P
- http.begin(url);
3 N$ P3 H1 C4 R1 i - }0 c/ ^; P6 G; E% Q7 C0 V( s
- Serial.println("[HTTP] GET...");
& X4 D. V! N9 l$ e f* H1 | - int httpCode = http.GET();
! X% f% V( m) J4 X# i& y! R - if (httpCode > 0) {
w; K- l( ^: o0 \0 u - Serial.printf("[HTTP] code: %d\n", httpCode);2 g) m% I L) Z& y4 y
- if (httpCode == HTTP_CODE_OK) {
1 `0 ]+ j' Y, P& H7 v/ J8 p - String payload = http.getString();
5 o; P+ Y# t: B$ A1 ?! a - Serial.println(payload);7 a2 x+ r0 d$ o( W* p
- Serial.print("\r\n");
! S/ K$ t/ u4 @3 a4 ` - return payload;3 Q r# f$ |; y2 G0 h9 l/ Y1 [. j: S* B5 w
- }% w, {5 ]/ W0 k% M
- } else {
. W) a( ]2 \. N. t7 H3 l - Serial.printf("[HTTP] GET... failed, error: %s\n",
: t3 y) H$ [5 E - http.errorToString(httpCode).c_str());
7 _) \& |1 Q( W A5 h+ f Y3 L - }
) v" r& M7 r; J# k: H% r# \0 _( q - http.end();
( S* J/ d5 ^( n5 Z- X1 _ - return "";
$ l! d6 {, ~% t - }
( L( M$ N, U, d% h - }7 @3 _" |3 z5 e% O. X, W
- void mainAction() {
) C+ G/ \/ E7 y/ M1 w/ R. A0 Y - // 发送请求
0 V. v! J0 G" b/ [! p - doGet("http://google.cn");* L' ]* l- O9 Z x% Z; s, p! d
- }/ p& x9 ]1 f% V# x4 J
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