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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)3 {8 |9 ]2 l$ @% p8 ^, t3 e
- #include <ESP8266HTTPClient.h>
2 ]0 k q+ k% j" c6 V3 `) o* R* v - #include <ESP8266WiFi.h>
6 o, T! R+ S) D& x, R7 b, W - #include <ESP8266WiFiMulti.h>- P( d& n N+ S
- #include <ESP8266WebServer.h>
: j1 b% B& \- A" t w* I - #include <arduino.h>
- `( l. t/ Z0 W! n, u5 q - ESP8266WiFiMulti WiFiMulti;
# p6 x: E B: ] - ESP8266WebServer server(80);; D* r+ J7 k# X5 W7 E/ y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 G% f7 j, u: E/ d- I1 o7 I% o# V - ADC_MODE(ADC_VCC);9 Q9 Y1 ?* P: L% }& o3 E" m
- void setup() {4 c4 V4 Z& p! ~* `% _
- Serial.begin(115200);
% W+ t& E/ j; X. s& Q - Serial.print("\r\n\n");* P- J" Q( Q5 H/ s1 m y: P
- pinMode(2,OUTPUT);. U* w5 H2 x, ]2 j& ]
- // WIFI. d* W% W) [( v3 V7 h' r% p D
- WiFi.mode(WIFI_STA);2 }# U" y# N8 J' p' k2 k5 S6 ]
- WiFi.hostname("Sparkle");
& j' ?& H/ n2 r0 q6 @5 i* d, q( G" e - WiFiMulti.addAP("wifi ssid", "wifi password");
/ I: Q: u2 H4 o - int tryNum = 15;
0 n4 g2 q0 X. v5 V' y - Serial.print("Connect WiFi");% ?9 E" _" ]1 B2 V
- while (WiFiMulti.run() != WL_CONNECTED) {$ A& o* I7 x4 }" b8 B
- digitalWrite(2,0);1 z' u' N4 W# Z Y
- delay(200);( k( S8 Z. b# Q$ A% u
- digitalWrite(2,1);/ m! q ^# f: g# M
- delay(300);0 p$ V( w& ? P O$ W0 j) I9 X
- Serial.print(".");
" ]& v5 i& r8 { - tryNum--;2 U7 E1 U3 E3 R* O2 w |
- if (tryNum == 0) {
6 l9 g7 y M" l; I0 H) S - // 1min# ~7 I: x1 q+ `
- // ESP.deepSleep(60e6);- \ F% ^9 O' y" V% W
- ESP.deepSleep(0);
2 b. v% G( l) l - }& u9 M X5 A8 z0 i) O" A
- }
$ N* D" ]! E, m- `: ~* Z8 |$ x - Serial.print("\r\n");/ z+ S1 ^# u; l) M
- digitalWrite(2,1);) H! u @" W5 ?. Z; l% R1 h* [. {
- Serial.print("IP address : ");
* L4 l/ {" }8 s: r% j o - Serial.println(WiFi.localIP());, M, k2 V2 i0 i6 [! ^# z3 M
- server.on("/", HTTP_GET, [](){" z. I- M6 l7 h9 B
- server.sendHeader("Connection", "close");3 e7 ]7 d/ D5 o. s+ S* @
- server.send(200, "text/html", serverIndex);4 I* ]- O5 @4 H
- });+ D$ L3 a- J/ z0 z# ~
- server.on("/update", HTTP_POST, [](){
7 {4 C' L) d9 v+ H - server.sendHeader("Connection", "close");
+ Q/ K, e3 ^. Z5 R4 W- v - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* ^! }; s- p/ ?$ X - ESP.restart();+ @9 ~# [) j, y6 P6 p
- },[](){
1 i3 ^) J6 e7 F0 I5 [. D- l - HTTPUpload& upload = server.upload();0 A1 e* i, D4 S1 r4 m3 g( x
- if(upload.status == UPLOAD_FILE_START){
/ m' `! @& w$ b, f* X9 u - Serial.setDebugOutput(true);
# X( N' Y4 E: q5 q* m0 e) } - Serial.printf("Update: %s\n", upload.filename.c_str());
3 S+ l# B. P( ^, U - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* o# z5 Z: f; s* K - if(!Update.begin(maxSketchSpace)){# J, T3 {! U( V) H8 s
- Update.printError(Serial);
9 `/ ~4 R5 K* W) z- D A& z$ r( M - }
! o8 i6 d J5 i2 z* e) ` - } else if(upload.status == UPLOAD_FILE_WRITE){
& ~3 h0 q% I9 ^/ k6 r4 z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& }' W3 U1 Y$ k% q' F - Update.printError(Serial);
4 h4 G8 @5 C4 |# D1 L - }
& M. ^& m" u# V/ c - } else if(upload.status == UPLOAD_FILE_END){
- n8 A6 s6 K6 R( e2 n - if(Update.end(true)){- h( p0 q" V4 z r# `# l# |# D8 \. ~
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ z/ ]& A! A. n& b
- } else {
, V) s( n4 f u* S( { - Update.printError(Serial);
# P, H( B# P) k( Q0 |" |8 d: r7 ] - }
- t% i B5 z2 X2 e* j - Serial.setDebugOutput(false);
5 a( t) q2 ~. W6 _ - }
/ U+ H0 }2 x! E4 r" u. K - yield();$ B( [6 M" C4 W- B8 |
- });8 E9 m7 x) f; f3 f* N9 h% `
- ( H0 o7 T3 [+ A2 P* ]
- digitalWrite(2,0);
) u; i1 E. c' s. J - mainAction();4 V W& I* D0 \* P( g S" i2 f+ i
- if (digitalRead(0)){6 V+ e' ?; u9 H5 _( N3 }( z3 R4 _
- ESP.deepSleep(0);
, E8 m; y3 X7 u. i6 M - } else {
% N, I2 h, z( d - server.begin();
5 ?9 _; q6 J8 N* b* C3 L$ M - } ]+ S' E# k- o* z
- }
7 L# q0 X' P4 v" X$ h - void loop() {" N# Y# G0 B6 C! |: e# k8 i
- server.handleClient();, Z6 |) }0 \# u) p( D: f
- delay(1);5 L2 ^% G# H- h
- }+ F1 \( X, S9 W8 o3 A/ N3 M
- String doGet(String url){
; h, N# Z! O: k# o7 j# Y, X - if ((WiFiMulti.run() == WL_CONNECTED)) {
/ y( ?8 M% X; }% c - HTTPClient http;
& F, R _. v6 j0 k) Y: D" m) ` - Serial.println("[HTTP] begin...");" K: F# Z: A+ r8 a
- if (url.startsWith("https")) {4 x' B# d! B- r6 }; F0 M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; h9 p7 ?0 a- [8 j; ?( [- G2 y- \ - } else {
3 y2 Q. e1 j# E% I( m! C( J) ~1 T - http.begin(url);3 ^4 L8 P- j* v3 {, ~0 m( J
- }& o, i$ ~& L1 \7 t7 c) ^% o. B
- Serial.println("[HTTP] GET...");
$ j$ A4 W. @" Y2 m) Z9 i& h' w - int httpCode = http.GET();
4 k6 Q9 e+ `/ [. P# _ - if (httpCode > 0) {
5 y! B9 r' a# |" C( R9 x0 V - Serial.printf("[HTTP] code: %d\n", httpCode);
; g+ Z; J/ A) W - if (httpCode == HTTP_CODE_OK) {
; k; @* e: T5 Q% y7 I8 B8 [( t - String payload = http.getString();
+ N2 u0 }. u/ l( i1 E0 C( O - Serial.println(payload);
* k* M# u1 Y0 N1 i - Serial.print("\r\n");0 d- [$ h0 M7 D2 E
- return payload;5 f5 w I! P- w% \+ J
- }" w9 y3 j9 v# Y
- } else {& t. b# K M1 q& z6 q$ s
- Serial.printf("[HTTP] GET... failed, error: %s\n",
) p0 a- C4 d. S: R - http.errorToString(httpCode).c_str());0 S: @, j1 {/ H
- }- i; L+ v8 r" h6 V$ T
- http.end();4 M4 j# _! _" d4 O2 V
- return "";$ Y! d8 }. E) R4 O4 w2 F
- }4 o9 r) J2 Z4 D- x/ @
- }
0 l7 u/ R- w; [8 Q0 E1 c - void mainAction() {
7 N4 L4 Z/ b/ R0 _ _ - // 发送请求
. M9 E% C/ e9 h' `6 U" B7 ? - doGet("http://google.cn");
( W( p/ }% A, I0 v3 b8 ]$ G - }
* K- S- a8 x3 C
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