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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( R5 Y8 m/ F; k/ L0 V1 F- #include <ESP8266HTTPClient.h>- T# }( X. i" X8 O0 J$ X0 g/ x
- #include <ESP8266WiFi.h>
* G! N/ e" D+ b - #include <ESP8266WiFiMulti.h>) N1 A; F; b) @" y4 M; z
- #include <ESP8266WebServer.h>
' n- d1 o1 Q" V; X8 ?9 F - #include <arduino.h>
5 e+ `+ n! l% y1 l6 h2 h0 C - ESP8266WiFiMulti WiFiMulti;
5 U/ J9 V1 _) K" X$ J% d" K - ESP8266WebServer server(80);
9 J' ?5 c- ^3 l# B - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 F! K5 y" J( f- S/ |5 R
- ADC_MODE(ADC_VCC);
! M1 f ^% k9 g9 \2 V7 Z9 h" z - void setup() {
; _% a2 A+ \3 p8 q& D; u - Serial.begin(115200);
% x3 _1 @: i6 v' [2 C - Serial.print("\r\n\n");7 j0 i# b- H$ W- i# w- c8 z8 W1 K1 U
- pinMode(2,OUTPUT); t% t2 z! L. \ Q- Q, W
- // WIFI
. Z: s0 _$ }* q1 C( Q5 m - WiFi.mode(WIFI_STA);
9 h/ ]4 ? ~7 A" X& G' U) h z - WiFi.hostname("Sparkle");
" W, f# K( p q$ M - WiFiMulti.addAP("wifi ssid", "wifi password");
- G- w/ s) u8 o6 t* t1 n& O( d - int tryNum = 15;7 ^* i$ z- d) D1 j3 @0 s( z( M
- Serial.print("Connect WiFi");2 c( s% g8 v; b; D6 C
- while (WiFiMulti.run() != WL_CONNECTED) {
1 H' Y) K+ W, N, S! j - digitalWrite(2,0);, I, N6 v9 @6 g$ s5 Q
- delay(200);$ H5 H* D& ]8 Q% G9 \. V
- digitalWrite(2,1);& N2 B$ A9 w/ A9 n! K
- delay(300);
9 }! e5 {0 J! }7 [ - Serial.print(".");
. b ?* k" v+ ^* a - tryNum--;# q: b- ~0 N# r0 r
- if (tryNum == 0) {
6 p3 u |6 m4 U3 n; v - // 1min
8 i# I1 ?- Y C2 c% T; K - // ESP.deepSleep(60e6);
: V( X, |1 l/ L/ G - ESP.deepSleep(0);' b9 K, B6 s t8 _5 I/ J0 i" r
- }4 H9 N' v# T! P g& M3 {, V
- }
9 n, E$ q* o" P7 V7 U6 N - Serial.print("\r\n");6 {: w9 x. W# _- l) @
- digitalWrite(2,1);
0 V% H! @1 P4 d! @% [8 x - Serial.print("IP address : ");4 R- u7 _: {! {5 E% ]$ L
- Serial.println(WiFi.localIP());
1 m: |: x2 b/ f) s: z+ Q - server.on("/", HTTP_GET, [](){( b7 S2 d# B/ }" j/ v: Y
- server.sendHeader("Connection", "close");
7 R5 t v+ c0 I - server.send(200, "text/html", serverIndex);
M7 f9 [8 F% E - });
2 V3 a; H$ z6 y6 ~: Z- v - server.on("/update", HTTP_POST, [](){
3 ?3 {# j6 u8 A2 ~6 `6 g: y/ r - server.sendHeader("Connection", "close");
: I, ?( X+ b5 u7 Y4 }# O - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- R$ t- }& M y* S* w7 ^
- ESP.restart();& g; J, U Q& [% ^( q5 b
- },[](){
) n6 X" z, D! \+ o( O9 E+ y0 A - HTTPUpload& upload = server.upload();* o+ [' i: p9 u8 _! O' _3 H$ M' q
- if(upload.status == UPLOAD_FILE_START){* E+ c! E1 b' x ], N( |- J/ w
- Serial.setDebugOutput(true);- Z$ z- {) d7 y4 `! B. {
- Serial.printf("Update: %s\n", upload.filename.c_str());
. ?" o" E9 S' B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' ]# } C+ t5 ], S: T - if(!Update.begin(maxSketchSpace)){$ F! l/ O7 I: Y7 q' J/ @
- Update.printError(Serial);
( ^) o- c$ D+ s: N- ]- R - }
5 ~: s" T+ P; \+ q( ]# |+ n& Q - } else if(upload.status == UPLOAD_FILE_WRITE){& V/ e* C$ E- Y: W+ ]) Z$ n
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 @& x1 `. u! O, e8 z9 w: Q- S( a
- Update.printError(Serial);% g K6 c% n! N# Y+ j* u! V
- }
+ n1 {* M& b6 b1 R! }3 i* P - } else if(upload.status == UPLOAD_FILE_END){
; V5 s% E6 h) w* Y/ Q6 X - if(Update.end(true)){
$ g" j; p7 m, h: {! u2 R: H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ B# L) O/ z! }% P- b7 P' j - } else {8 x) U8 i* i5 y8 @
- Update.printError(Serial);
, v4 f! \% G4 e5 y - }
9 Y; d. b, X0 O- ]5 q8 u - Serial.setDebugOutput(false);1 e1 z) q; T. ~+ m* b% Q
- }0 M/ }" ] N: a! M
- yield();
[# u1 ]0 b i( X" ]' F" S7 { - });2 `0 d6 f1 M9 y+ g5 ~
- 8 X/ F7 ~( m2 d7 E* @ z2 t
- digitalWrite(2,0);
?1 Y4 A3 e; f# e# ?# j6 Y - mainAction();- U: }: s9 ~0 L/ }2 ~! j
- if (digitalRead(0)){8 x$ i0 n2 J5 L$ t. G& j
- ESP.deepSleep(0); i6 E$ m: v, d3 p. U3 V# R
- } else {6 V1 L9 r# }6 f4 N
- server.begin();
7 ^+ O9 I8 B; B. d - }
3 r2 T( W" k) s3 r- {+ e( y - }4 n6 o# }" e4 N% Z! F2 d
- void loop() {
0 W. S' ~$ i6 S' R6 | - server.handleClient();$ `9 B) Y4 M2 a- ^
- delay(1);! @# E1 f. J& g; S* T
- }( q. C1 H- ~4 @, [1 o
- String doGet(String url){8 d) }$ I6 ?6 _0 R `
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 S; ]6 ?5 o! x! ` - HTTPClient http;
" S. J/ v- _1 T- i6 z - Serial.println("[HTTP] begin...");4 q/ |" [/ F! V; x! G a9 N# U. G
- if (url.startsWith("https")) {
; u7 M" G# p' O+ R8 A( d7 j. Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 ]: X4 U9 g/ |9 b2 q+ \6 n
- } else {, y* D2 ], f: z1 M2 C8 C" m' ^
- http.begin(url);
9 H; n' V" o* o1 K; I- g) } - }; ~( W, e6 N2 K- V! \
- Serial.println("[HTTP] GET...");8 t9 l1 d* ~8 Q. k* ^6 E* N
- int httpCode = http.GET();
* G8 w$ r: @: z6 Y+ B N) `5 X1 } - if (httpCode > 0) {
; k0 J$ e# U4 w3 r$ w1 y- c' d - Serial.printf("[HTTP] code: %d\n", httpCode);' q. S7 b& D8 o' S1 ]+ K) g
- if (httpCode == HTTP_CODE_OK) {
& \+ d" L) G0 N( H. O* |; P- W - String payload = http.getString();+ G4 h0 Z9 V. E* l6 a+ H
- Serial.println(payload);
% J( _! B" W, Z; L K; F+ ]2 y - Serial.print("\r\n");) E+ G3 W% r$ ]# T3 M
- return payload;" U+ B, X; c5 N8 Z. B5 {2 L
- }% }/ r; {6 H/ A' _; s5 |
- } else {. m! h, }& z/ X% d* S5 q
- Serial.printf("[HTTP] GET... failed, error: %s\n",0 m; e' { r! }' H& p
- http.errorToString(httpCode).c_str());
$ \/ P7 F( }1 l2 o - }3 p6 U0 I5 y7 B2 {
- http.end();& I) i' U; z5 k7 e# c
- return "";( {" r" R% @- U( P Y" t
- }
0 n7 D- A) N6 H5 O7 G& h8 ?( u! t) R - }
9 L# \% z: q- H2 r E - void mainAction() {
( L+ e% g3 Q( m* @ - // 发送请求
- C4 X+ h- b& i' L - doGet("http://google.cn");" B% t- R7 M- }& j/ _
- }: w7 x, s2 X1 k0 ?8 o# a6 y0 o. ^
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