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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)
Y$ I, P; `8 ^( m- V- #include <ESP8266HTTPClient.h>7 P( T) h% c1 E. E h
- #include <ESP8266WiFi.h>
4 A4 o, T. P/ g& {1 u4 i' w - #include <ESP8266WiFiMulti.h>0 N1 z, X! ]2 s
- #include <ESP8266WebServer.h>6 d& b& C2 B4 n* K
- #include <arduino.h>1 J. Z' d. R2 d* A" |
- ESP8266WiFiMulti WiFiMulti;
/ e) m: T v4 q7 y5 k, S# q1 a - ESP8266WebServer server(80);: _. `& U5 I' v
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. U- d5 e7 B2 X$ z) y5 V0 a - ADC_MODE(ADC_VCC);6 l) A- I) Q$ R+ O- N% |
- void setup() {, e3 i. u% |; z5 Q- m5 w h
- Serial.begin(115200);. q4 h) l5 k% w
- Serial.print("\r\n\n");
8 g# B! c; V) `* P - pinMode(2,OUTPUT);% T3 d9 w6 L& ]! F
- // WIFI
' l5 g- E) v9 \2 E( k - WiFi.mode(WIFI_STA);
5 H2 e: p W' Y& g$ x+ M' m; z - WiFi.hostname("Sparkle");
h, o4 A9 V3 z: v - WiFiMulti.addAP("wifi ssid", "wifi password");
3 X, W3 G: T: W6 T$ |/ k - int tryNum = 15;$ k2 y6 B0 i* u9 P3 J
- Serial.print("Connect WiFi");
8 j# r# f, D, |9 |" a7 a) | - while (WiFiMulti.run() != WL_CONNECTED) {8 ] h* [1 Q; o# I# g; o
- digitalWrite(2,0);
7 D) t' w- [" E, Y ]5 M0 P - delay(200);5 u9 j3 N; J4 y; W) k: `$ f) O
- digitalWrite(2,1);! W0 D( s5 i; v/ t5 I
- delay(300);
1 p% m, M8 j `; M: W. D - Serial.print(".");
; n! c$ H7 m) q. s3 w$ B8 W - tryNum--;7 `9 A. Q" m( s4 e& P" f% @
- if (tryNum == 0) {
1 q. n3 U6 c, P. c5 j& t - // 1min D* z( h4 m% ?! h# W1 L9 I
- // ESP.deepSleep(60e6);
5 B5 D e: M0 I0 l0 n - ESP.deepSleep(0);
# q$ h; x3 w1 h- [! |/ Z - }
* s1 [# u" G: {5 g! G! [% a - }
M0 M7 R- D' x3 {% W6 W# u - Serial.print("\r\n");
8 @: i/ C2 {) w; W/ ? - digitalWrite(2,1);0 g& V2 c! ?6 p# x3 E
- Serial.print("IP address : ");
+ h; D2 b: b% b p c" H - Serial.println(WiFi.localIP());+ M" T7 r6 l- S! b6 O
- server.on("/", HTTP_GET, [](){
% g! i. c. K* B0 t! B; D - server.sendHeader("Connection", "close");
, B8 u0 n5 Q7 I2 m5 H - server.send(200, "text/html", serverIndex);
# u2 H: ]0 }5 S2 x - });
$ \9 I7 R6 g' n3 ~0 l - server.on("/update", HTTP_POST, [](){
3 y: Y$ ?6 N! a& p( _8 ~ - server.sendHeader("Connection", "close");4 C& V# I; E3 G, W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ Q# w5 n0 i5 |7 G - ESP.restart();
0 t! k2 x- b. h* [, \9 B - },[](){
) T+ ]5 f7 l' a/ t - HTTPUpload& upload = server.upload();
; l& I* w5 h6 p - if(upload.status == UPLOAD_FILE_START){* e0 k, U( Y% V5 x i" G1 ?& @
- Serial.setDebugOutput(true); |# o4 p$ l- Z ?
- Serial.printf("Update: %s\n", upload.filename.c_str());. }; D1 h1 B; ?$ W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# U& `! I& y6 r& a
- if(!Update.begin(maxSketchSpace)){; x+ W/ T o4 x
- Update.printError(Serial);! w/ L, S- L5 a
- }
5 q% T& M2 U" \. I5 L; O0 ?/ F, u - } else if(upload.status == UPLOAD_FILE_WRITE){
! h6 \ V, D' @. g r6 C: R6 z. p - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) h/ F2 d" h; ?! l- Q' N - Update.printError(Serial);( j+ a/ D% ^" B- e% d0 {: I
- }, t% W3 \' y) s
- } else if(upload.status == UPLOAD_FILE_END){4 y! C$ H' r: R7 j
- if(Update.end(true)){9 |, s' g3 u( G" U4 Y( `5 r
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ I( c( \; B* |3 e4 m, [5 X
- } else {( T3 X: e4 o" B4 S) }6 ?
- Update.printError(Serial);
7 B$ l0 ?. R9 P/ G2 z& ] - }
S- o% u: c3 r/ `; m1 B - Serial.setDebugOutput(false);/ |: U9 C6 Q* \1 Z
- }) H3 e0 s: s" x' Y/ F" d/ N
- yield();. I7 W2 H% q% d7 R- O2 M; i; `
- });& _/ `+ ]' }% k& x4 }
-
e& B1 q) [6 p. b& h' J - digitalWrite(2,0);
5 d+ U& ?: f( u( k) c5 `! h4 W" L - mainAction();+ l* {; U' W8 ]5 _/ j
- if (digitalRead(0)){
9 `; W1 |, p: ~ - ESP.deepSleep(0);9 f8 C6 _$ u, J+ {! W7 [
- } else {
' ?3 q6 c* h! N! Z3 W - server.begin();$ q2 l* R5 u2 w Z- _* ?4 r
- }
9 C& O& E6 D) n6 O: N( d - }
( t% n( Z& Q. p - void loop() {
' i0 ]' Y0 G* S$ s$ n( m - server.handleClient();
3 D+ p8 X' I: p/ Q - delay(1);1 Z4 Z" _8 J4 D/ c/ i
- }
) c6 |% z) W5 y7 P0 L - String doGet(String url){* |2 u# F6 R, A4 F, f5 ^; i& P: ]
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" T" b2 p0 P# C6 W2 t - HTTPClient http;+ w' |9 P: Z% i. y: I6 ~: n, l. q; ^
- Serial.println("[HTTP] begin...");
# h/ V ]4 N8 i - if (url.startsWith("https")) {6 A5 x& l* X- |% b9 W& u" C3 }% I/ b: Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 \" J) I% z# \' @ {+ b, J/ c
- } else {
; X8 h! n" m& _: i0 D) e! w8 S - http.begin(url);- U7 ^. j1 s9 p
- }' p9 L n( `2 n3 G$ M' z8 u K; \
- Serial.println("[HTTP] GET...");
* F; e6 r/ z5 X" T2 s/ H, u - int httpCode = http.GET();( R9 K1 d$ w0 [$ S: u% s% A/ M
- if (httpCode > 0) {) z3 Y) A# y) L) O) f7 W
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 ?* |* G. t. J, j, Y - if (httpCode == HTTP_CODE_OK) {
. e1 N2 a2 U, x- R8 `! [1 G - String payload = http.getString();
: M: t+ w; m: l; ?5 c! \: D0 a - Serial.println(payload);5 \7 Y" @2 `& z
- Serial.print("\r\n");
6 G* ?5 c( B3 e7 W' P. z% B( Z - return payload;9 {' T( I R/ a
- }
3 B* a5 M( }) {* K& t. R/ N& H - } else {: I4 _3 v2 x7 |5 U! i) w" a" S
- Serial.printf("[HTTP] GET... failed, error: %s\n",
) B' F9 O# s s* N4 }4 k, j. e - http.errorToString(httpCode).c_str());
" { \5 g2 {/ x: [! o( m$ i - }% \& o1 R E0 O% Y: W5 _% W1 L: D
- http.end();7 E+ h% p$ Z! v4 K3 q; |: O3 Q
- return "";1 B" x, D/ d" L1 c% H r1 K( U
- }
; o6 {+ C C" D) L! t [ - }
, j2 E/ ]. y1 h* w) ?* A; j# O - void mainAction() {
& d. }" R$ ^. G0 w; q - // 发送请求& X. p5 i/ H4 A
- doGet("http://google.cn");/ h! X, Q! a6 V7 G
- }
; Q! x8 k8 [' W8 B$ R4 Z
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