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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)0 c- ]3 `1 S/ D4 `$ g
- #include <ESP8266HTTPClient.h>
/ J2 O% x- [2 p5 c. y/ q8 ~ - #include <ESP8266WiFi.h>
* g+ r4 Z/ V* c/ e - #include <ESP8266WiFiMulti.h>
$ Z7 ~' C; J! Y' O2 B6 q - #include <ESP8266WebServer.h>
. |; c1 d, H- M* T - #include <arduino.h>
/ W8 ~( {( x6 } - ESP8266WiFiMulti WiFiMulti;
! y9 ^$ J. [4 t - ESP8266WebServer server(80);7 ^0 T- w& x& |: V& c7 e
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% Y: O. }0 g+ }: L% s; K - ADC_MODE(ADC_VCC);
+ A) w: [ X: D - void setup() {
& f. d1 k! A+ h9 Q# }9 S- ^ - Serial.begin(115200);9 A% F6 N" O2 T/ A0 Z' E
- Serial.print("\r\n\n");
8 d) M1 K) d* m2 c - pinMode(2,OUTPUT);
3 v1 H! T' Y8 L; s( m: G) E$ @ - // WIFI
" Y( ^0 H- I* i* I9 A: g - WiFi.mode(WIFI_STA);
W4 [2 h( ^+ i: @$ h0 ?4 W- `: r - WiFi.hostname("Sparkle");
, s5 O4 K) j6 j& V) _2 d - WiFiMulti.addAP("wifi ssid", "wifi password");# }2 o' d, A7 v
- int tryNum = 15;% \( b; g' ^3 B1 S" J) J
- Serial.print("Connect WiFi");
z# g8 @6 x' R; a - while (WiFiMulti.run() != WL_CONNECTED) {
" A5 ~ H* t e+ u! g - digitalWrite(2,0);
; m2 n9 f% u2 k, ~) Q' R1 K# K - delay(200);- E5 g5 ?$ Y4 p4 n9 ?
- digitalWrite(2,1); E3 L- q6 v' L$ z/ ~
- delay(300);' m& e* A2 J3 T
- Serial.print(".");
. e8 ~& Y. Z* s: j) ` - tryNum--;6 O) {% |9 v7 g9 S& D
- if (tryNum == 0) {) c' D& A! v* U% {. @
- // 1min) ]! ~5 Q4 ^5 S) e. e1 ?
- // ESP.deepSleep(60e6);
2 n1 ]3 _. e" {8 ^* b0 I - ESP.deepSleep(0);
3 q4 p; Z. _; g5 h - }
2 e2 v4 P' h- d5 u: S7 [1 v - }
: q2 X% m: f" q# d9 K - Serial.print("\r\n");
, ]0 W" Q9 \+ \$ U' Y - digitalWrite(2,1);
: M: B h7 I% g0 J, G7 ~. T8 Z) F - Serial.print("IP address : ");' b$ X6 H+ }" Z; @! j7 ]' J
- Serial.println(WiFi.localIP());
; }8 u" y* r8 e) u3 N" q; x9 z" g - server.on("/", HTTP_GET, [](){4 L7 x! f- W8 l. C1 ]% j% O3 {; i s, W
- server.sendHeader("Connection", "close");) L8 x3 @9 }* q: |4 r$ E9 i; x
- server.send(200, "text/html", serverIndex);; x& m4 a; n3 ~) O
- });' Q4 n- q% R* e! M; p: s; s
- server.on("/update", HTTP_POST, [](){+ u) o' ?$ K: f+ {3 i" g3 i* D
- server.sendHeader("Connection", "close");
- o( I7 g& }: _/ E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# n# ^1 B, j5 k
- ESP.restart();: s5 Y5 m9 \ \4 C/ S
- },[](){
# ?6 B* o, y1 v C - HTTPUpload& upload = server.upload();8 X' V5 r# Z: q) a, {- p
- if(upload.status == UPLOAD_FILE_START){1 y: H$ g* S6 m$ j+ r, Y
- Serial.setDebugOutput(true);* _7 M0 @$ Z+ O! U' `: n
- Serial.printf("Update: %s\n", upload.filename.c_str());' B5 u+ x& H' l; O' q+ N6 e
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 Z& C. b0 p5 j1 @% S" z% R, n
- if(!Update.begin(maxSketchSpace)){/ S7 T0 ]: d+ M: B+ w
- Update.printError(Serial);& w" g1 P* [" H2 v: J
- }% r U8 I- r, p8 ~
- } else if(upload.status == UPLOAD_FILE_WRITE){/ e+ E0 m5 V/ C' b' X8 E8 z% n( m
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: }/ k0 H% L: ] - Update.printError(Serial);
: D: }4 j8 n B2 u! V' t - }
T1 G! q" [. h: J+ c6 U. [ - } else if(upload.status == UPLOAD_FILE_END){7 y2 u3 j0 q7 R; x
- if(Update.end(true)){
# X$ W2 ]8 v; @ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ I; O' n' a8 q: ^" h8 ~* k- b
- } else {* P5 K# r. P* e3 M/ }. O
- Update.printError(Serial);
5 l: m# M$ t% `. @! @# |- @ - }
" Z0 ]/ i& N& E2 W8 S - Serial.setDebugOutput(false);
+ l) G: v$ y( j N. F - }
5 b, U) [" H w( j/ C - yield();# ~& `5 u0 x+ t* G- d2 H! ?1 h& t
- });7 X1 Q0 `9 U! ^) n+ r
-
0 g1 k1 }: f0 A - digitalWrite(2,0);5 l+ n8 r* L! ]3 H9 [8 ?
- mainAction();$ v2 q% B1 \* m; G2 U
- if (digitalRead(0)){- ] O( D* d2 E) K. C7 W8 M
- ESP.deepSleep(0);2 K) C9 X, M% Q. S. S
- } else {4 r4 y3 i' n( e6 I
- server.begin();
2 o4 S* n3 u [% o# j& z - }
! }9 h1 o- `* o7 z8 y5 H - }
, N; @" Y. e0 B& J - void loop() {
! J, o) k6 Z- X5 u; k - server.handleClient();
5 d. ^9 d7 Z7 h! [, p - delay(1);9 u5 B h$ w% L7 j7 Z7 `
- }
& }6 {" B. h( l" h8 X& O - String doGet(String url){! E8 \( h9 f0 c0 }9 j
- if ((WiFiMulti.run() == WL_CONNECTED)) {5 @3 l2 [7 a/ C2 I2 P
- HTTPClient http;4 m2 l) q8 [% v! q
- Serial.println("[HTTP] begin...");
( l* E. e: x7 z( H" F- D3 N" c6 h - if (url.startsWith("https")) {0 s9 u1 S3 K) U& y: G4 Y& Y" L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); |( M' ~0 _1 u9 A
- } else {1 f7 F& T5 G P' t; N9 |. ?, K
- http.begin(url);2 f1 Z6 x1 Q u" b7 C" h
- }
D* I! ^+ Q7 r( [ - Serial.println("[HTTP] GET...");
k3 T Y0 s% W) p" ^ - int httpCode = http.GET();
* s# D- a/ D# q8 H* F; r. m - if (httpCode > 0) {
# W* D4 E% j8 @1 I, @/ L/ o2 ? - Serial.printf("[HTTP] code: %d\n", httpCode);
, T& s$ q! K/ j, C+ p. ~ - if (httpCode == HTTP_CODE_OK) {# u- ^6 a/ B) F6 B2 V
- String payload = http.getString();9 K. _$ U. [! d1 ]% G7 r. T! o
- Serial.println(payload);& m, Y$ M" B! ^ _
- Serial.print("\r\n");
- K$ k9 ]6 C5 J& @7 v - return payload;
1 c5 b2 C, P) t) k5 K1 n9 x S4 i - }
4 ~. O0 E% m! H - } else {
; d. b! |. C$ R2 h- u' `+ c- N - Serial.printf("[HTTP] GET... failed, error: %s\n",% Z4 E s {4 D5 H. i
- http.errorToString(httpCode).c_str());
, G: g0 M1 s8 Q ^6 k4 V; n: x5 { - }7 W3 U3 n1 l$ G' ?+ {. c2 i
- http.end();
5 I% a6 D) N9 l/ X% y) E f* g - return "";% n* e _0 A1 J/ ~; X
- }
# @: w7 I2 n, ~ A - }4 P+ V! M- t3 {: {
- void mainAction() {
/ E1 ^' ~* b2 F, b - // 发送请求
' h' }: M3 i) n! r# s K2 { - doGet("http://google.cn");9 M) U# }$ ^# P8 ^) k* R
- }
( s* O8 E* `( r7 y' Z+ F
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