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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)2 |, ?; H( t+ v
- #include <ESP8266HTTPClient.h>8 D+ R1 Z' l3 m* K
- #include <ESP8266WiFi.h>
2 o2 U1 I9 V# B. K - #include <ESP8266WiFiMulti.h>% h+ B9 f: ?! V3 i3 s
- #include <ESP8266WebServer.h>8 L2 M4 A' S/ }5 O( @0 x# F
- #include <arduino.h>% E/ @( Z) j& }9 R3 W
- ESP8266WiFiMulti WiFiMulti;5 F C) U& {' E
- ESP8266WebServer server(80);4 @# x6 Y7 M6 H
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 G! Q7 V+ @/ F7 \% z" S! |% W2 ] - ADC_MODE(ADC_VCC);
' \: R- Q0 S9 [" c+ c/ o, v - void setup() {
: i. W2 I1 `+ s, D - Serial.begin(115200);$ H2 L! Z0 Z3 x( y4 w, X
- Serial.print("\r\n\n");' D% P+ ?0 e# e
- pinMode(2,OUTPUT);7 N! F$ w0 d2 T- f+ k% G* }" m
- // WIFI3 D- _# `! S0 [ C! g" o1 E
- WiFi.mode(WIFI_STA);
3 e; \8 |, _& d2 w4 c# F/ ] - WiFi.hostname("Sparkle");5 K1 N0 c+ L: z+ b; Y; m9 z
- WiFiMulti.addAP("wifi ssid", "wifi password");! M6 g: v6 ?" b7 \. U0 u
- int tryNum = 15;
3 \; u- N: c7 i; P7 \ - Serial.print("Connect WiFi");8 E5 T% E& d3 s
- while (WiFiMulti.run() != WL_CONNECTED) {0 W7 ^, ^ X w% d6 h4 H
- digitalWrite(2,0);
0 i9 T4 F, f& Y, h- a5 X - delay(200);# ?9 J1 y! x2 B( F) [
- digitalWrite(2,1);
: B' O% b% \/ M6 P( D9 N - delay(300);
) O3 V9 H, y3 \# d& g - Serial.print(".");$ S* I. O. I" d, z6 q
- tryNum--;& x, U, r T1 B5 K* M
- if (tryNum == 0) {0 S- D/ s0 \. ]5 h4 h
- // 1min) Y( c9 W! d5 t: L5 ^
- // ESP.deepSleep(60e6);
# Q* J! {/ l7 D3 x, I - ESP.deepSleep(0);
0 I9 G2 c9 J- P, o; I$ E - }
& {- f0 e. w1 v1 a1 h* g - }
7 n9 l! l6 [' R; l' L: l" Z - Serial.print("\r\n");& r6 z9 d/ `7 W% V, S: @+ l
- digitalWrite(2,1);
, [" i/ g$ p4 N! }2 a/ W5 O - Serial.print("IP address : ");
5 K, ]9 z4 t' \6 O7 g - Serial.println(WiFi.localIP());
$ H9 d) w; T: y. z - server.on("/", HTTP_GET, [](){# k. y* g" z+ R4 M' @
- server.sendHeader("Connection", "close");" O, u8 g5 y8 T
- server.send(200, "text/html", serverIndex);
- i5 ]% p, } B: ` - });
* L4 R. K7 _) z2 a# P, | - server.on("/update", HTTP_POST, [](){5 q8 D2 I+ [* h: J/ V2 G$ i& r6 |+ w
- server.sendHeader("Connection", "close");
8 r2 O9 ^' E8 a- S. B - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' o, F: [5 w7 }9 F H/ q
- ESP.restart();3 A( p' Q& F5 U# X/ S7 Q2 _1 c
- },[](){4 n( u/ L" r8 z4 [
- HTTPUpload& upload = server.upload();: D0 W6 G+ b" z7 e
- if(upload.status == UPLOAD_FILE_START){
, [- I7 [1 F* R: V4 ^ - Serial.setDebugOutput(true);
: w; Q6 J3 k1 G: B9 j - Serial.printf("Update: %s\n", upload.filename.c_str());
9 `" h+ d+ d" o( g* t/ i - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' H" ]9 q8 f6 G* p0 C, ^2 G - if(!Update.begin(maxSketchSpace)){
1 U$ Q# I/ K1 t ` t - Update.printError(Serial);
4 G5 N' Q. E8 @8 Q" y: l' G - }; P" Z/ s' S) A9 n3 l; f. z
- } else if(upload.status == UPLOAD_FILE_WRITE){
& @! j+ U% D" G - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 \5 j' h4 ?' { o - Update.printError(Serial);
0 o. N3 }1 V1 J5 ?) {' J - }5 N9 W- t# c2 Q( |3 z
- } else if(upload.status == UPLOAD_FILE_END){0 L$ h* b! C* w. [
- if(Update.end(true)){; t/ T. j8 I4 d. J$ b1 j; I
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
Y% `. }- g2 |" \' P - } else {
# D' J- ]# K- u4 L# m - Update.printError(Serial);
* _# ?- v6 A' H% |. P, u - }$ `! Z' l% @7 q- ?
- Serial.setDebugOutput(false);) |1 Z8 d4 k; k
- }2 G) i) y- g3 e. a0 j
- yield();1 H& [0 J( z! A- n, [- L
- });% k' L ?% x* Y5 y8 h9 H2 I
-
8 }% s* _) ? M: L - digitalWrite(2,0);9 J8 h1 D3 C) V: @- O
- mainAction();7 ]. h7 n7 \( Q5 Y9 s
- if (digitalRead(0)){4 |1 }% k- D) k* g' H$ m- o
- ESP.deepSleep(0);& j. m. k9 J8 G
- } else { S% j' \ _2 ]! g3 P
- server.begin();. I4 S0 }+ X; A6 |( G& N
- }$ |0 _0 t1 X8 f+ m; _& e! O6 K$ |
- }
5 c8 N Z9 e- `, S ~ - void loop() {
0 a; K3 F5 I# c& B+ d - server.handleClient();% z3 N* r& k1 g2 m1 g3 `# a$ V
- delay(1);
/ I9 w1 D- q3 o - }
4 _# e- }2 Z& ?* K' N2 M - String doGet(String url){
- X# ]1 T( B, J4 q9 t2 t+ n - if ((WiFiMulti.run() == WL_CONNECTED)) {4 ] E- E8 W$ \$ W( E' O
- HTTPClient http;# Q' l8 z8 m( r- I( Y7 P
- Serial.println("[HTTP] begin...");* h. C# m8 R" c9 R; q! T; [, C$ L
- if (url.startsWith("https")) {. p0 O8 _0 c3 C( E# H
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: o( d' \+ Q3 \# i# j - } else {- y- Y( F8 h! C0 A7 U) T
- http.begin(url);
! @) f( k i2 Z8 x - }
. z+ K6 l# y* A9 } - Serial.println("[HTTP] GET...");
9 j8 c/ B9 U4 s d. | - int httpCode = http.GET();4 z7 X, c6 o5 K9 P
- if (httpCode > 0) {
" o; a( V- U0 ~' {" d; k - Serial.printf("[HTTP] code: %d\n", httpCode);
0 d, O+ m8 n9 w- u5 M( U: v" p - if (httpCode == HTTP_CODE_OK) {
6 V$ x8 _4 Z& }& Q2 B! T9 f - String payload = http.getString();' I( D+ P! Y$ e6 x! O+ |- W
- Serial.println(payload);8 l# }) d. e# I$ Q. B* B+ T
- Serial.print("\r\n");# h7 h; ]4 U m5 x
- return payload;
! q! l+ x% w/ o1 ?, t - }
4 s0 ?5 Y5 b2 F. p - } else {
+ r( ^. G2 q- O7 m( w - Serial.printf("[HTTP] GET... failed, error: %s\n",9 K4 F) k8 v6 @3 r
- http.errorToString(httpCode).c_str());
+ I1 h( K( ^; o. \# |; B* Z - }
6 p8 |% V& w! Q! R$ d8 t+ w - http.end();
% A6 G! F8 }7 G6 p# ?8 I& r - return "";% ?2 u0 d/ }# A Z; W1 w
- }
3 m6 L' c1 t0 @# ]6 \+ H - }; s# j5 K- k2 a! \! a; @% J& e1 H
- void mainAction() {1 {1 k( p0 c3 [5 x& Y# n
- // 发送请求
8 J* d; s7 j# |3 x. t! x% y) Z8 ` - doGet("http://google.cn");. Q! ^: L% \0 |+ \
- }
8 w: f; m l- o7 v8 @0 B+ c- h
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