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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)
- o8 P; I) O. `' i- #include <ESP8266HTTPClient.h>
- u' w* [! z0 p8 W" K8 L. h/ A- { - #include <ESP8266WiFi.h>
% k! {% w/ u( y9 i" o y: s - #include <ESP8266WiFiMulti.h>
; {; `+ x+ u! w/ j4 a) ` - #include <ESP8266WebServer.h>! f% l" z: e+ ]5 ^) U+ \, r- b
- #include <arduino.h>& @2 i7 P3 a7 t1 J, [) }
- ESP8266WiFiMulti WiFiMulti;. E3 i" V9 R3 T* ~1 G- `
- ESP8266WebServer server(80);# F9 o" t8 M0 u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, T/ f9 m) @ O: @% L( a
- ADC_MODE(ADC_VCC);$ x1 G/ k+ b D+ M% C: z+ E
- void setup() {- n& M% h& d6 Y! \
- Serial.begin(115200);
0 G' J1 V+ A' |- g% D& N - Serial.print("\r\n\n");
& g+ x& B& A1 K - pinMode(2,OUTPUT);2 L! w& n, Z( N( d: ~3 Z
- // WIFI* [1 U I7 y$ z) ~
- WiFi.mode(WIFI_STA);
0 W/ c. p4 R# S) V# Y9 ] - WiFi.hostname("Sparkle");* [8 h" F f) j6 i* ~+ `
- WiFiMulti.addAP("wifi ssid", "wifi password");
3 H: ?: u* @8 |/ ^ - int tryNum = 15;
2 J5 d9 u# | e! V. D" X0 n - Serial.print("Connect WiFi");
: ]8 A# v' Y/ ^# Z+ D; ]8 S# C - while (WiFiMulti.run() != WL_CONNECTED) {- Z! `/ e$ h: u2 h; H/ ^
- digitalWrite(2,0);
; B- i% F* e# H6 A - delay(200);2 h8 Z* r$ A) b) H
- digitalWrite(2,1);
# E. d& `. \" N8 e) h/ T8 i - delay(300); e$ ^# Y" ~$ K- e5 G+ m' Y. u
- Serial.print(".");
) b- R) p. L, d% N8 w1 ` - tryNum--;
8 o$ R8 |# F' T3 \1 L! T - if (tryNum == 0) {1 X/ z: u5 j( Z/ E' X+ S% o
- // 1min9 ^1 v. S2 t, O5 \
- // ESP.deepSleep(60e6);
4 Q. ]. e# Y% }9 K& v - ESP.deepSleep(0);1 G8 Q$ r0 R( q, K% L J
- }3 {% M" |1 Q6 c! e
- }8 o2 @$ J, Z5 u0 U! D% B( `
- Serial.print("\r\n");" i5 d9 l1 y U# a! _
- digitalWrite(2,1);
T/ l) F- x4 t+ Q9 w5 }" o$ Y - Serial.print("IP address : ");9 k/ S; \; p) u n, X1 O' x% n4 c
- Serial.println(WiFi.localIP());
$ w" E: |3 ]2 F$ N3 H9 D! [: K - server.on("/", HTTP_GET, [](){
- ~# l, Q; F- q/ Q z8 W8 h - server.sendHeader("Connection", "close");7 z. k6 l' D+ s! S: w
- server.send(200, "text/html", serverIndex);
" @/ w/ E4 M1 i# }5 W5 J - });$ Z) I( C# t( v9 h7 F# e
- server.on("/update", HTTP_POST, [](){8 b( y9 r% d5 K9 Q% R
- server.sendHeader("Connection", "close");+ B" N$ t# z$ V* R
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: w5 t: X& ^6 F1 I
- ESP.restart();5 `/ B0 V0 \/ y2 G
- },[](){
; a" u' c+ X# u - HTTPUpload& upload = server.upload();
/ m, J* U& I3 E O5 X) E - if(upload.status == UPLOAD_FILE_START){* I2 Q3 ^7 s) P7 U+ f( d, w8 Z
- Serial.setDebugOutput(true);* G. m) a0 M* r. Y
- Serial.printf("Update: %s\n", upload.filename.c_str());( w9 e" h8 I$ \( O7 k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 N, ^& ?; z% x3 ~5 T, f - if(!Update.begin(maxSketchSpace)){7 D$ g5 w0 S& ^' h
- Update.printError(Serial);. J. B8 [' [+ p) j- @
- }
& l- R2 U/ ^3 E1 J1 m9 p - } else if(upload.status == UPLOAD_FILE_WRITE){
( E) ~ P0 F6 T - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) V# d K7 O# K& `
- Update.printError(Serial);2 _: o& Y2 E2 q- g! r5 ^* c
- }: r! q5 P( H1 \7 b$ T9 t7 `
- } else if(upload.status == UPLOAD_FILE_END){- W E% {5 C! @' X' z
- if(Update.end(true)){2 P+ G, m7 g% f( K; p
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: y4 z' Z* e. J0 M- k8 m# T - } else {& a! r8 F7 ^& t2 K6 B* D
- Update.printError(Serial);
. f3 w7 ]1 D- @3 C5 x0 d" T/ w - }
8 V |: n+ T# G5 f9 E - Serial.setDebugOutput(false);# a& F* P' [$ X
- }! m ~8 p2 y, L& Y
- yield();
) V# K, S5 M$ V) _/ B5 L - });
6 E2 p0 U% n. q- [# ?' Y2 ] -
* K2 j/ ^$ U+ [% X - digitalWrite(2,0);
: p2 ?! |. ?, H" Q; r - mainAction();) b" u; w% \, n! _
- if (digitalRead(0)){( p! f; B6 h, h% ~+ a$ z% I
- ESP.deepSleep(0);
9 m! d/ I3 g! x0 Z - } else {0 s. N' B9 ?3 f$ S) R( B, B
- server.begin();- s3 c/ l( k X" Q
- }
( r+ K; F Q/ [) V2 O - }2 Q# e! F3 x, m" u/ E# W$ z* g
- void loop() {9 y- z% h) D, [# z2 f
- server.handleClient();
$ e, U2 g9 Q) i& S5 P2 D. T - delay(1);, h! Z- x3 `2 ^; C3 p; f h
- }! Z& k9 I( T$ y) c
- String doGet(String url){
& I' M \ M* B% x! j$ S - if ((WiFiMulti.run() == WL_CONNECTED)) {
" p7 ?+ E- g% G/ v: e - HTTPClient http;
U8 C$ ]+ t( J X- S- Z9 S; J6 K - Serial.println("[HTTP] begin...");
. a7 `5 }8 E- \, l' c# J5 t - if (url.startsWith("https")) {+ r- p# y' h) k5 K- {) F* f% p# c5 j. C5 F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' i4 i9 w9 u; K) x/ w3 B - } else {0 r. W5 E3 x& F' {6 Z, R
- http.begin(url);* I( a8 E% d! G, H0 d3 J) W, D
- }4 S( n1 @0 W- ~, ]; F( t0 o* c
- Serial.println("[HTTP] GET...");7 E1 u5 P& b0 P! N
- int httpCode = http.GET();# L/ B" Y f7 f, @, b
- if (httpCode > 0) {
) p/ x+ m/ |6 N9 q u; B5 @ - Serial.printf("[HTTP] code: %d\n", httpCode);
2 G% }; N" z; n7 Q* Z" y - if (httpCode == HTTP_CODE_OK) {
! n- k; L Q0 @7 N5 F6 {3 p; y - String payload = http.getString();
1 o% N. |' z3 a8 }9 t# r - Serial.println(payload);
! m, B% ]' A, M0 q2 U- t$ r - Serial.print("\r\n");, f( R+ @, |3 g! t
- return payload;& r( u* M& {. X9 f5 i( j
- }
- w$ i+ F6 H/ Z - } else {7 a# [( O. L6 L7 x& g
- Serial.printf("[HTTP] GET... failed, error: %s\n",
- o2 P& k5 m) H. q& t - http.errorToString(httpCode).c_str());1 `& ]- E E* E' R, B
- }
0 D' i' ?3 Y2 G) r" y- n& k - http.end();# [& e1 G+ W& @3 D* N2 f
- return "";2 ^. R; p% Z: m
- }& f; O; d# M1 I+ |% s% M6 _+ G
- }+ O$ ~$ p! v! S) T$ Y& N
- void mainAction() {/ q: H, P$ }' T) e6 L8 p! ?1 X
- // 发送请求8 v/ d4 |5 p" L2 P- K
- doGet("http://google.cn");
( E3 g' X/ P" x6 e) k' q - }4 Y$ ]- Q" [+ v* X8 d
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