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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)
- C5 @% b& [5 D7 y0 E+ E& Y- #include <ESP8266HTTPClient.h>0 K) g) u4 r8 v8 v
- #include <ESP8266WiFi.h>
) _7 S" A# s* _ - #include <ESP8266WiFiMulti.h>: H9 z0 }8 z( n M/ {
- #include <ESP8266WebServer.h>+ E& Q9 P0 |7 N# o/ q
- #include <arduino.h>2 p" }- S( [: X- Z$ q$ o: F
- ESP8266WiFiMulti WiFiMulti;% A0 v' f+ M: O3 Q6 z
- ESP8266WebServer server(80);3 \5 R! U$ w. a5 j$ R. R+ J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' b5 k1 Z' [, V7 ^5 [ - ADC_MODE(ADC_VCC);
5 J5 l! p% L8 Z2 L# T z$ @1 _# W - void setup() {
+ \' L) u9 h. m ^7 H- v - Serial.begin(115200);, v; D2 V+ d0 t) d* N
- Serial.print("\r\n\n");
( Y8 u- o) T. h - pinMode(2,OUTPUT);
. h7 f, J t3 [: h4 h6 A$ c - // WIFI8 {5 P, H# i2 v# e2 p8 \
- WiFi.mode(WIFI_STA);) R/ q- L: ~3 `1 M. I" j1 f: z/ _
- WiFi.hostname("Sparkle");
, r/ n' |# G5 F. N1 \ - WiFiMulti.addAP("wifi ssid", "wifi password");) [1 k; i+ K1 d! c! d& { a
- int tryNum = 15;$ I( D7 ]1 p/ }- N. _! W
- Serial.print("Connect WiFi");
( P" ]5 u$ k8 i* R - while (WiFiMulti.run() != WL_CONNECTED) {
$ z9 I) g& F0 ?& Z) p$ ]/ \# a - digitalWrite(2,0);
+ a+ U1 J0 d- q& F/ h* {2 H - delay(200);
& `5 F" ?: c/ T Q" H5 ?5 L. [+ u - digitalWrite(2,1);/ Q6 h% x4 z* K' k+ |! y# Z; \
- delay(300);. u y* L" ^! H7 D) T& b) i4 X
- Serial.print(".");
6 }1 O6 V8 G, Q( `; F- I v - tryNum--;& F2 E2 U0 j& L% Z
- if (tryNum == 0) {
! F: ^$ h* q9 m2 [% Z" m - // 1min
2 ?0 A& {1 [) u - // ESP.deepSleep(60e6);
5 T/ N5 u, m' M" w& ]# r, H' Q - ESP.deepSleep(0);
% S5 c+ i# ]) f - }# f% I; a* s4 [8 a5 ?% w9 ]' O3 r
- }
/ o4 F4 p$ u1 k# w" a4 @ - Serial.print("\r\n");: v4 k k K E4 i$ j
- digitalWrite(2,1);
6 a/ N6 w4 d* a% h5 t - Serial.print("IP address : ");! `$ v: p: P& J* U
- Serial.println(WiFi.localIP());
1 u8 L. @1 }9 e4 x' D. L - server.on("/", HTTP_GET, [](){' s, N! N3 I5 ^$ c! y: Z
- server.sendHeader("Connection", "close");# u" w7 L3 O& o9 z! J
- server.send(200, "text/html", serverIndex);
: X+ P8 |3 H* v3 n7 @, j0 H& J- @ - }); I2 @5 i. \# @' |5 U1 R4 }
- server.on("/update", HTTP_POST, [](){2 h% q, Z% e" f7 M1 t. S
- server.sendHeader("Connection", "close");
1 v( s5 k& o" a! v! u - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 n% u' ?% m4 F) `+ X
- ESP.restart();
) Z3 s" t7 S: A& l+ O; ]) | - },[](){: r$ X5 V* ?1 P5 ^4 p7 _9 X
- HTTPUpload& upload = server.upload();' d& e _5 _9 K* I0 X
- if(upload.status == UPLOAD_FILE_START){
' g# L0 _+ V8 e# M. C8 R) F0 R) v! M - Serial.setDebugOutput(true);- [# P x( U( H
- Serial.printf("Update: %s\n", upload.filename.c_str());
) \9 j! p* z9 n1 g+ D: l% J - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ z/ F5 T2 S; }- _ - if(!Update.begin(maxSketchSpace)){. c* x U4 ~/ i+ u, m
- Update.printError(Serial);
6 [6 l! i- S& m$ h& U0 Z - }$ [. y. t/ p& z
- } else if(upload.status == UPLOAD_FILE_WRITE){9 s+ x3 U" Z& Z9 m4 D
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 z0 }" U4 y/ u - Update.printError(Serial);6 l( ~: W" \6 ~! r& q, W
- }: |0 I& @( G) e8 V8 d
- } else if(upload.status == UPLOAD_FILE_END){# s1 `/ s8 C* P
- if(Update.end(true)){, T' b6 f5 {4 O8 Y G9 x" u. w
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* ~- [% |) p: f, z3 U
- } else {. f: q% ?/ j' X
- Update.printError(Serial);
' H% l# p* Y% j J* p1 t - }
6 k( B7 O' J2 H" o/ ? - Serial.setDebugOutput(false);
* U* u: W( G( S# `3 @ - }
3 a' |' K, p a* g/ W, a4 g6 \( h. U - yield();' @; ]+ u W7 S& ] s7 U3 H7 N0 ^6 Z
- });* z0 _1 O! ^6 ]4 ~
- 5 c5 M' d3 ^9 F
- digitalWrite(2,0);
% e! E+ ~; @* p9 ~8 Y$ m. C - mainAction();
, ~3 \- a; h5 q4 ?( n - if (digitalRead(0)){2 y; d3 k) v2 |: ^6 B6 r& d1 C
- ESP.deepSleep(0);
6 N3 x* ?5 d0 `0 U5 b3 {0 ~2 M# C% S% D - } else {( T' ~% G' l4 _! r7 H O" K3 z
- server.begin();
8 K/ p6 g8 d5 Z1 V( s - }
" {! T6 l0 U3 d: q7 { - }" u# [1 _- h8 I
- void loop() {' g/ p J, ^8 i7 F
- server.handleClient();/ A8 a! Y$ I& D0 M# M' f
- delay(1);$ L& g% I+ z% a$ j- {% a, B
- } }5 u2 d/ A/ E X, |
- String doGet(String url){
+ N7 O% C8 [; }+ Y - if ((WiFiMulti.run() == WL_CONNECTED)) {
% D9 n0 ]. I5 y8 C' `( y - HTTPClient http;6 s: X* F. u8 ~( z! K
- Serial.println("[HTTP] begin...");
, U& ]6 N6 ?- ]) {3 d7 D( a/ d/ L - if (url.startsWith("https")) {1 `" e8 V) N, ] o" n5 b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; r' y4 \& d" _# O( X
- } else {
) l9 X. m/ x/ j! U! ?/ J4 ]. l8 I1 c - http.begin(url);
' _& p( t7 a, @. R - }
8 D- a) ?- }) F% @' S) h - Serial.println("[HTTP] GET...");
# C" w& q) O1 Q6 z4 I, m7 ] - int httpCode = http.GET();
' s4 a6 \8 u, _* F! F - if (httpCode > 0) {
2 b( s: H' f2 d1 f+ i0 M - Serial.printf("[HTTP] code: %d\n", httpCode);
& S9 `& r$ R# x; B - if (httpCode == HTTP_CODE_OK) {
$ z1 Q$ u8 g7 ]# s4 S& ^ - String payload = http.getString();& w* g+ \* T9 q$ a; U, Y, a# ]
- Serial.println(payload);4 ]& T; q7 k' R# q) |6 Q% R
- Serial.print("\r\n");
4 [1 s1 D9 p4 c3 Y$ G - return payload;/ i. U0 ]) s& _6 V# y
- }* R6 n8 i3 t: c7 X) f; \- ]2 @ Y ~
- } else {
* ^2 w+ V8 o( {: [+ Q - Serial.printf("[HTTP] GET... failed, error: %s\n",7 v }8 v% B3 c; R& x9 t
- http.errorToString(httpCode).c_str());6 }( l" c2 P! M0 Z' ?& w K
- }
3 R2 U2 K4 K' o* _ - http.end();
$ ^' _4 W: q( k0 H. \) S - return "";3 E o7 d; K3 X9 s
- }
5 M1 g: q9 d$ o* w0 q; k: H - }
' r/ C+ O. O; U9 T3 a - void mainAction() {6 ~2 y [% b' G. h: l( ]/ m
- // 发送请求& p% l; G' ~1 A$ o3 o9 `
- doGet("http://google.cn");
& _2 o) h6 d7 g$ _5 ^. Z; I - }
7 s) j( R" H7 ~' b0 {' ^
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