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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)
6 ?* _; O( V/ c# d! `; p- #include <ESP8266HTTPClient.h>
/ l* t- t' n5 N4 e+ c+ n) I - #include <ESP8266WiFi.h>3 {0 `" d* p' U
- #include <ESP8266WiFiMulti.h>- ~' }9 i6 r7 m: I' r
- #include <ESP8266WebServer.h>
9 _. a$ ^/ Z- B' F x - #include <arduino.h>
9 i5 X+ x9 i$ r8 I! r& S - ESP8266WiFiMulti WiFiMulti;
6 [, O1 h+ r% R% p+ B' T - ESP8266WebServer server(80);
9 b( M; e# Z/ w' K: L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' ] T6 i4 O$ g3 U( y% t& U - ADC_MODE(ADC_VCC); @% W0 P+ l5 u; O: Y; W
- void setup() {
# {3 A2 Y( c( l+ B! f/ N - Serial.begin(115200);% M Z, ~8 }$ C; s7 n) Q
- Serial.print("\r\n\n");9 l+ r. S) b2 z& ^! e3 T
- pinMode(2,OUTPUT);% e3 n, u: u/ N
- // WIFI
. e/ ^( i) B9 u( U1 ] - WiFi.mode(WIFI_STA);8 e- v0 h `# b- w
- WiFi.hostname("Sparkle");
. y: a- |/ I% j) H9 T0 }0 f P - WiFiMulti.addAP("wifi ssid", "wifi password");
( O& { w% a* H9 v2 B# h - int tryNum = 15;, O% t, g+ |" N
- Serial.print("Connect WiFi");
7 ^9 t9 c8 K( ? - while (WiFiMulti.run() != WL_CONNECTED) {, e T* Z' a4 l3 @$ i
- digitalWrite(2,0);
: }! H3 s9 W& p9 D - delay(200);
% `, q: t; m+ h% \6 K' f0 T: x - digitalWrite(2,1);1 ~8 }& A7 i- i. t& |
- delay(300);" M8 ?' G% I; s5 o$ B A
- Serial.print(".");
5 C9 ^6 t' G! S7 h- w* d3 M9 _: ] - tryNum--; t2 b2 }, n2 t( J
- if (tryNum == 0) {
* V& F8 o# l E" u' z' r - // 1min
5 M) n& N( ?2 H4 R K% ~ - // ESP.deepSleep(60e6);# G- R% r1 ]% z
- ESP.deepSleep(0);) l- {1 C4 |" v l9 {: j
- }; @, g! H. Y& R
- }3 Z" b" H; a, {, ?1 g# v7 I! |
- Serial.print("\r\n");
" W' q" {% |4 ^ - digitalWrite(2,1);: k+ L3 g) V% o0 K5 B# b
- Serial.print("IP address : ");
2 h( Y! U, b+ x# @$ e0 Q - Serial.println(WiFi.localIP());0 H9 B. T1 c8 g- v, _
- server.on("/", HTTP_GET, [](){6 M5 x3 ?8 ?& a) o
- server.sendHeader("Connection", "close"); G6 I' y, X8 L/ y& K% P2 N. F) y
- server.send(200, "text/html", serverIndex);& Y& ?$ t: `' A& @: d- {( L& W
- });
3 H7 u9 ?3 X2 ~ - server.on("/update", HTTP_POST, [](){1 ~. b' G% h9 \5 i6 T
- server.sendHeader("Connection", "close");8 r. M7 u7 @) y( g9 q: \) J/ n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 V2 e1 d8 A6 g9 S1 E5 ]' X1 Y - ESP.restart();
' @; q: L) G/ {2 M7 i - },[](){& _& ]5 U! e3 u- w# F8 l G
- HTTPUpload& upload = server.upload();6 \& F0 I+ j' p3 q; V) a
- if(upload.status == UPLOAD_FILE_START){
8 u% I2 c# u( v. J! K, O - Serial.setDebugOutput(true);
3 E; r% [$ @9 X: [, b - Serial.printf("Update: %s\n", upload.filename.c_str());. v8 C4 t1 ?+ g3 r& E/ U
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ t* B" i3 ^: h! p. k5 O
- if(!Update.begin(maxSketchSpace)){
9 V! M$ p# G3 s1 n n3 W9 A - Update.printError(Serial);( o0 R% F+ d! z. v4 F
- }
+ E$ v) A* v+ o; v v6 C0 P' V - } else if(upload.status == UPLOAD_FILE_WRITE){1 j% R' t' H" C6 F" M9 x9 _3 D
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ h8 |3 L8 y# B$ X u4 U* d - Update.printError(Serial);
. n9 y' B* O5 }% b: u; y; u - }
7 r# @4 N: `1 f4 O0 b3 e9 | - } else if(upload.status == UPLOAD_FILE_END){
2 n7 S6 J z+ X1 @9 ?9 I8 ? - if(Update.end(true)){
; V3 @. W$ ^& L6 P: i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, N6 m% O: Z) }, R* R& o! t - } else {3 g( O7 h, k' D$ ?8 w3 {" q) G: u
- Update.printError(Serial);
7 S; o. t8 }. b4 s- | - }
" Q8 W' y; v9 A8 D% m. G5 }4 ?5 i - Serial.setDebugOutput(false);' ^6 F/ K. i$ a- r2 B$ b' ^0 U
- }
( @, o4 S* C1 W! O# ? - yield();! w% Q" N# I) _7 }0 O; Q; m
- });
+ v4 D0 U; `7 ?; H4 }- g5 Q -
4 C+ ]7 K: [; F+ ?6 T) C7 A/ K; j - digitalWrite(2,0);
- J' b9 i+ z! {5 F4 h - mainAction();( \1 w+ H* b7 s" }. ~6 q7 @4 Q: ?
- if (digitalRead(0)){; [( S' i# H+ b6 g* i
- ESP.deepSleep(0);/ u8 U: n3 F7 ]# [0 ?: _1 c x# P
- } else {5 a9 \: L5 t5 l0 g- ~$ w0 Y. ?
- server.begin();$ ^1 O5 r. ~/ j
- }
, i, U& |- ], f) x5 | - }
" `) [0 D& b+ x2 n. h! t7 B* J4 R* U - void loop() {- e- _3 o- `- R0 b
- server.handleClient();# `) w6 [5 k0 ^6 |* Y' ^' g
- delay(1);% I. n/ X; } G' r) K( \
- }! k8 W; Z7 |9 y- l) W
- String doGet(String url){ ^- Z) W( E' [9 k
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 X0 v8 J7 c+ C5 U6 x$ U. t; l - HTTPClient http;
3 M" W! z; [8 |( g8 v - Serial.println("[HTTP] begin...");
. ~' Q# _" I& i. ^5 V - if (url.startsWith("https")) {
8 a( y4 Z, p p# V% U9 S - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 h' G; u* ^. c - } else {
' s8 t H* W! H$ ]! b7 d) W8 w - http.begin(url);
0 }7 S& ]3 i! [. ?- }9 s. | - }
- I& J( E, s }, [) W2 x' [0 o - Serial.println("[HTTP] GET...");
+ q" X8 m) y; q; f - int httpCode = http.GET();# Q# D6 q6 w7 f& L
- if (httpCode > 0) {
& g3 [9 v2 N5 R5 W( V! k" z - Serial.printf("[HTTP] code: %d\n", httpCode);/ L2 Y2 ? i' L- G
- if (httpCode == HTTP_CODE_OK) {
8 t* H/ L1 X z3 Q9 X - String payload = http.getString();6 O" v( Q6 e9 F; K+ Y
- Serial.println(payload);, I! ?+ V, M7 d4 e/ J n% r
- Serial.print("\r\n");
( T S* l2 D4 U# u* ?* ~5 o" R6 R8 @ - return payload;7 e( @ a6 Y% }6 m
- }
" W; [+ u# W$ d4 q* V - } else {4 r4 U( x+ g0 @4 r( N' Y- A# m
- Serial.printf("[HTTP] GET... failed, error: %s\n",
% s* v5 P) ?8 l; i% t; T3 [ - http.errorToString(httpCode).c_str());
$ q" H; X) J* Q! I4 W - }
/ K# D8 k" A9 d) b" O - http.end();
0 v c& {: h6 k8 Q8 q; y1 q0 l - return "";
& |0 C! o. l4 M& v - }" P: N }# L* u' R% T
- }
w+ k+ A" F1 }& r - void mainAction() {
" K5 t; h( Z; e( r! [ - // 发送请求5 l/ d% b* r! l) V$ t1 o' [
- doGet("http://google.cn");- e8 ^0 k7 i* l, ]! [- D# k
- }
4 }; t: e9 G( J2 g: [
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