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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), A( Z4 X0 R0 S8 R: P. W0 T
- #include <ESP8266HTTPClient.h>
* t0 `7 G! r- U9 E* f - #include <ESP8266WiFi.h>
1 @: }* o5 p' c5 S/ V) L* V+ p! z( H/ R - #include <ESP8266WiFiMulti.h> M3 i8 Y/ J4 S! n r9 w( d
- #include <ESP8266WebServer.h>% m! _) c6 B# v9 o
- #include <arduino.h>
% h& F J- Y; H0 \. ?8 d- Y: i - ESP8266WiFiMulti WiFiMulti;' m; d0 x2 d! I% T# s
- ESP8266WebServer server(80);
1 {7 F, t3 }. [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 v* X2 _9 @. I5 B7 z( | Y
- ADC_MODE(ADC_VCC);
, Q* f- l# J! G1 V. K, q8 Z) ]0 j# ` - void setup() {
" M: a! Z4 p0 _+ s2 j* i - Serial.begin(115200);6 j$ r# G6 v3 T$ R0 z4 O7 r
- Serial.print("\r\n\n");
& V* x) a; {' A, b3 n - pinMode(2,OUTPUT);6 _5 ]" [2 n. M
- // WIFI
7 v' l& @1 o5 v& ~3 b% E* O5 | - WiFi.mode(WIFI_STA);8 C" ?7 t+ Z& n; f6 ?/ n
- WiFi.hostname("Sparkle");
* U$ x+ y. t& g3 L- r - WiFiMulti.addAP("wifi ssid", "wifi password");
: g7 C7 T7 V, Q - int tryNum = 15;4 U; ?6 s. a) V0 j$ u: a# g6 U8 I+ v* S
- Serial.print("Connect WiFi");% h% n4 N, {: p. w9 B4 _
- while (WiFiMulti.run() != WL_CONNECTED) {+ ?2 B# g7 H0 I
- digitalWrite(2,0);5 d2 K; u( I' A' R" U8 D
- delay(200);' h6 o% S* ~6 X% S
- digitalWrite(2,1);
4 L4 e' b* w& C* X2 Z* `7 {% \ - delay(300);
8 G( z: C- u" K% J; _" C - Serial.print(".");% m( A3 ?3 J, ^( O9 X1 f
- tryNum--;6 a! `1 h2 k1 i- I" G/ b
- if (tryNum == 0) {% X2 s7 b7 w& p$ M3 e( j
- // 1min
3 ?$ [$ N: i5 f/ {9 a# I1 d- L - // ESP.deepSleep(60e6);
+ c; D. a( o) j - ESP.deepSleep(0);
6 B1 B" ]1 g W5 F* P - }
4 X" j7 [6 ?; ^2 d( d2 m9 f - }
8 k A2 V9 a2 r. H' Y - Serial.print("\r\n");
7 Y. a6 x7 r0 j2 Y - digitalWrite(2,1);) |& d0 a. \) b6 D$ w+ a6 h
- Serial.print("IP address : ");
( V( r7 V- I j5 M. G0 z - Serial.println(WiFi.localIP());
+ g5 n% p5 B1 N( l8 k - server.on("/", HTTP_GET, [](){
0 L/ U* N8 V8 @9 w8 E - server.sendHeader("Connection", "close");) o* I- o) W( m+ M( o
- server.send(200, "text/html", serverIndex);
! ]; H8 {; @2 Q$ R& ?( u - });
" D3 Q! E% g' e( H1 _ - server.on("/update", HTTP_POST, [](){
9 _" ]" e9 i' @' M& p6 E2 M - server.sendHeader("Connection", "close");
8 z9 U4 V1 C# T% }+ |# a; | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 X$ G5 G& |' R
- ESP.restart();+ z0 O h9 i7 y/ n
- },[](){& n' _+ u$ o& U2 i$ h- v) n9 s
- HTTPUpload& upload = server.upload(); ?! O R& A+ g) [7 { s q3 j
- if(upload.status == UPLOAD_FILE_START){
6 M5 Q$ i9 Z, x& q: H - Serial.setDebugOutput(true);7 X- p4 f4 j/ l1 G$ b4 h
- Serial.printf("Update: %s\n", upload.filename.c_str());9 g) |6 q% W/ f
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) [, |1 i ^/ Z1 ?$ H3 ^
- if(!Update.begin(maxSketchSpace)){
* [$ P! y b! _% D; a$ c) B - Update.printError(Serial);( }/ ~/ a7 @1 h+ s7 `
- }5 S$ O7 @9 f0 Q; j
- } else if(upload.status == UPLOAD_FILE_WRITE){8 a8 B* a- [! l# M5 r5 \- Z, n
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% W# s* u5 v! l/ |. H - Update.printError(Serial);3 N3 D% o) D/ E1 J
- }: c' U+ r6 [2 P. H
- } else if(upload.status == UPLOAD_FILE_END){, u M% h& o5 E; R
- if(Update.end(true)){
5 i- `% U+ T* U. ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 Z3 K! S0 J: p; v4 ]1 s - } else {
& P; ~7 |; y* d" _ - Update.printError(Serial);$ r$ x3 n% e1 H- ~- ~$ w) L
- }
, A# C( o# A; \9 U- J - Serial.setDebugOutput(false);( k0 |1 X7 u# ?
- }
- u8 g) \) \# K* C3 J - yield();$ H C& ^, I7 c# i
- });
, y6 `7 w/ [. O) b+ d2 W' g2 n2 y -
' I* I4 a' t! {" K' a% `. P - digitalWrite(2,0);
% w) K, @: X5 _; |2 P. @ - mainAction();
& B, v( N1 U* q$ p; e# M: | - if (digitalRead(0)){: K) I a9 O' U0 I2 r2 y, V
- ESP.deepSleep(0);. B9 s/ i3 r% }4 k0 h. k- x9 R
- } else {
/ L% P. A2 |( Z5 b- O/ p* U3 \ - server.begin();
' _+ L+ V8 i; _" j7 H& z - }+ P/ k a" O& S1 v3 s6 N
- }
$ Y; ]% h) x$ `# ^# _9 G+ R - void loop() {7 E6 k. ?* V0 e2 {2 J2 s
- server.handleClient();
, a! ^+ V( M: @5 B. p s - delay(1);
- F- J9 Q2 t, n# H" S0 u - }
& I3 U+ O/ D+ T+ N; j - String doGet(String url){4 l7 s) n! E6 |
- if ((WiFiMulti.run() == WL_CONNECTED)) { O' l. o* w# J* ?# ]
- HTTPClient http;) R( D( D: p; V. J
- Serial.println("[HTTP] begin...");
9 V4 j: S' I8 d: M. Y5 s; @ - if (url.startsWith("https")) {# U' m+ X7 {1 w% E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( ]" ]$ m; T/ t+ c8 P" B* U6 \
- } else {& Q! s/ ~- o! p' W: O6 p# ]8 N
- http.begin(url);
5 j; ]. B% c# T+ k, G" J; Y - }
" U, P9 `1 }% A D - Serial.println("[HTTP] GET...");
1 _6 ?" e8 T- J, R - int httpCode = http.GET();
, \( v w, U, ?! C - if (httpCode > 0) {
/ k7 B5 T+ n' H - Serial.printf("[HTTP] code: %d\n", httpCode);, m$ I: N# E' ]; h4 B5 _
- if (httpCode == HTTP_CODE_OK) {/ q! M' r, `4 a! v+ S
- String payload = http.getString();9 ^, B0 W4 r, K( Y- _
- Serial.println(payload);
5 _5 p; n- m" u. H# R - Serial.print("\r\n");7 x# c; h/ l. Y1 {9 R9 L0 ~
- return payload;
2 H6 q. A8 t" O' b - }% q+ u! L# C0 U# U. _; `
- } else {3 K! d$ b/ u2 K- m/ w& q: a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
. H; h- ~( z- } - http.errorToString(httpCode).c_str());
9 g( `' [, v6 h8 o5 N3 p) ]5 L& F - }
& j0 t$ g: z0 Z+ `5 P9 k7 ? - http.end();
8 Z) \6 J$ P% F2 T2 k! K9 ]/ X- B* L - return "";' H" _; @8 d) v
- }
' {5 p# u. Q; `7 ?. `" F - }
" o& K" B: ~& V# G: n3 D; @ - void mainAction() {$ v* q: P* u" k$ c; ~) r
- // 发送请求
" h0 J" k7 M( p9 D. A& z - doGet("http://google.cn");7 v/ W9 a% f' x% _
- }6 E, _& Y7 {, m# z. X
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