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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 Q8 O, V4 L+ o4 j% q7 n% M- #include <ESP8266HTTPClient.h>
0 y; [5 E# G4 j4 Y) n! G) V - #include <ESP8266WiFi.h>+ U( i$ R4 a. S, X) B0 u3 F: g
- #include <ESP8266WiFiMulti.h>& E) U7 A8 o/ m9 V8 E( T5 j/ F& h
- #include <ESP8266WebServer.h>
) X1 F" i; a* |$ X - #include <arduino.h>
5 i3 {' t/ C5 Y) J4 R) Z7 n+ q6 A- C - ESP8266WiFiMulti WiFiMulti;
2 G% ?) O5 u# r, k - ESP8266WebServer server(80);& ~8 [' {, j! _5 d% h1 q4 y2 e! o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 T/ t ^% ]4 g5 P! ]! e% K$ ^
- ADC_MODE(ADC_VCC);
+ G5 p4 m' n% p- i' F+ F - void setup() {0 ]% u) V' T% \2 I
- Serial.begin(115200);2 }! t1 o9 {. L$ Z" [
- Serial.print("\r\n\n");5 f8 c8 s9 s; W, Q' R$ T9 |
- pinMode(2,OUTPUT);& d5 u! ?) t( D" K- d1 [
- // WIFI, c. n, U+ }( b9 ~ Y$ F0 p. J
- WiFi.mode(WIFI_STA);3 o/ |: w7 V& o
- WiFi.hostname("Sparkle");
3 c6 t" g0 Q) E& G! l* F - WiFiMulti.addAP("wifi ssid", "wifi password");
3 w& H$ B7 s9 W% }: C: m J! i) d; b - int tryNum = 15;
& b" L5 d5 l; _! I! d2 e+ D8 j9 u - Serial.print("Connect WiFi");
1 y+ W4 z/ V* |, u6 {/ s - while (WiFiMulti.run() != WL_CONNECTED) {* ] Z6 {3 z8 L, b5 ^" `) e& v, _* r7 m7 g
- digitalWrite(2,0);
) ~8 S/ R( K" \5 |7 y/ {5 H - delay(200);
0 P w; k) S7 g. u4 }1 F - digitalWrite(2,1);' m4 p# U- s% g) `
- delay(300);8 d" p6 }0 ~$ n: b4 z* C B7 H
- Serial.print(".");- @& n" d0 G8 A
- tryNum--;
6 ~- b: b2 B8 p1 O - if (tryNum == 0) {
7 r5 V" s4 d. ?8 ~9 d6 y9 ?1 R - // 1min
$ L8 m# [& }2 j8 P3 k) j - // ESP.deepSleep(60e6);0 s5 J5 n5 C" }4 r' Q5 N1 Y
- ESP.deepSleep(0);
2 s9 i% ^6 k, Z9 t5 K+ G' } - }$ ^* L7 ?/ |2 H6 l5 g' y
- }
P6 {1 k# c/ z* A - Serial.print("\r\n");$ T {; P8 M- B
- digitalWrite(2,1);
( b$ X r* k# _9 B3 }* t0 c - Serial.print("IP address : ");
[& u+ j& a5 |' ?7 v+ S - Serial.println(WiFi.localIP());
5 `" L. p# j4 f' d8 _$ D - server.on("/", HTTP_GET, [](){' J7 [: |) t' g2 n a* v5 q( D
- server.sendHeader("Connection", "close");) w j8 t" U! x$ m4 S% H+ {
- server.send(200, "text/html", serverIndex);
6 g9 B+ w" x) \7 U- ?/ E a - });
( _) X- X. G1 Q7 V+ H - server.on("/update", HTTP_POST, [](){
6 A, g0 N; X: Y3 Q/ o1 h. T: G - server.sendHeader("Connection", "close");
9 }6 C& x. h( O) G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 G6 P* b, [& g. O8 n7 ~, W
- ESP.restart();1 W; w8 Q7 Q! w! \8 l9 F
- },[](){
( _; \8 f2 U! L, Z9 |$ i) L- e - HTTPUpload& upload = server.upload();
& S0 a' C& t9 W( i5 ^7 n - if(upload.status == UPLOAD_FILE_START){
' L% ]2 l3 E1 t - Serial.setDebugOutput(true);
% u# X V8 b1 { - Serial.printf("Update: %s\n", upload.filename.c_str());5 n. H5 @ V# V9 P$ ~1 {* w! d+ h8 c
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 Y" R& \/ D7 h" v: R - if(!Update.begin(maxSketchSpace)){
2 ]2 I3 U# N- i c/ a8 V, k - Update.printError(Serial);
3 h9 l1 `" A4 ~ - }" F% G, z( I4 X+ P
- } else if(upload.status == UPLOAD_FILE_WRITE){
# k5 F! W4 }+ }. a7 _3 } - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# k0 }/ \. j. p3 v; G
- Update.printError(Serial);; z( c" y4 C1 V6 F2 p' m
- }
# f, A: O/ l& w - } else if(upload.status == UPLOAD_FILE_END){
1 u+ G. m6 T; C' c# K - if(Update.end(true)){
, T4 a* Q! l% d0 E1 q! d- d - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 m: l0 S& {) ^) J - } else {/ ?) f" X( @: v
- Update.printError(Serial);$ c, n3 ?( p6 c. U$ R& e1 g
- }/ G0 m. e4 U2 m$ }% N
- Serial.setDebugOutput(false);3 I. y8 [& p1 y4 ^( m
- }
1 W/ G! {' ^2 J% x$ K3 P - yield();
0 C# O( m+ t# P6 f, Q - });
( M& W5 o, r# L$ s6 M - + X$ Y" p( R# q, u* }: A
- digitalWrite(2,0);1 |. C& E4 I! `: V, U
- mainAction();
' X5 Z( T' {0 p+ I# `* G4 ` - if (digitalRead(0)){
Q( k s! e" z- d7 L - ESP.deepSleep(0);
' |" \ l& X; J8 @8 p5 b6 N* ^7 `- [ - } else {
% ]! m1 O! a1 x( E8 z5 } - server.begin();
3 Q& F f0 S0 p/ {! Z - }
8 C: |- Y% j) z* z6 U! {& N7 |3 ] - }/ b2 e; M( D2 L1 m, A# g6 }
- void loop() {
1 |7 ], o# e U% R% U; P - server.handleClient();
& p7 f& U. J, B( \4 [' d6 i4 S - delay(1);
0 b" v- M, k( ^+ }: [ - }9 K5 m7 w5 e+ l9 R
- String doGet(String url){
( X! o- I! Z9 R, j& ~- z( t2 A% } - if ((WiFiMulti.run() == WL_CONNECTED)) {9 [+ `! u' ^$ {
- HTTPClient http;
5 z) p: g; a; S; X' a2 Z, z - Serial.println("[HTTP] begin...");
8 D' s" D+ s/ i0 F - if (url.startsWith("https")) {0 I- S0 R- H/ F1 W/ l( Q1 D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ t3 j8 M4 [2 K/ B: k7 A j* k - } else {
. ]; R( u9 h+ j3 {1 U - http.begin(url);
* L/ H' O" b& F - }
; I3 E* Q$ }$ b( G - Serial.println("[HTTP] GET...");
" w! V$ H- d- b; w$ x - int httpCode = http.GET();) ~( x q7 V* ?: \
- if (httpCode > 0) {
# \: _1 T& S8 D' s4 `2 { - Serial.printf("[HTTP] code: %d\n", httpCode);
( ]2 S- T, L0 G9 A+ Y - if (httpCode == HTTP_CODE_OK) {
3 o: c4 x6 j+ b) N& g - String payload = http.getString();
1 q m& w, p6 i- f5 J3 j4 Q& W) @7 ^ - Serial.println(payload);
6 q, A3 p2 u$ n& c# ~) F - Serial.print("\r\n");
1 g$ w( `; K, m# z - return payload; ^7 c' }. y+ g! N6 w
- }
1 C& F3 g7 Y: S3 x; j, E - } else {2 m! k" D( K% A- j2 a; Y* {
- Serial.printf("[HTTP] GET... failed, error: %s\n",! p- D% c4 t4 a& r( S
- http.errorToString(httpCode).c_str());& \4 W; m6 F; o5 M, x% K1 M
- }
/ ?7 X k+ P/ r5 y - http.end();
; }! m: q$ Y8 X5 ^ - return "";: t' K) y4 F2 T+ {" v
- }0 z3 [; L8 _! K7 E* l o0 O6 P
- }
. ~7 R- E% }3 O+ g- a# z - void mainAction() {/ ~2 f' E' R# c
- // 发送请求) ]$ b( @# L& c/ W/ h3 Q6 }
- doGet("http://google.cn");& i0 {- z9 w- i+ v8 A' f5 b
- }4 C2 Z& }! ~5 x9 J a# I: J
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