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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)
; ?* h( @7 o8 O$ m9 B: R' _- #include <ESP8266HTTPClient.h>
2 E+ s' y: l3 q! |0 c6 w& f/ v - #include <ESP8266WiFi.h>
& j* }6 I. }' |+ X* G - #include <ESP8266WiFiMulti.h>
8 `$ N: O3 z$ k+ x( J - #include <ESP8266WebServer.h>& @ [$ N( r' ^* G
- #include <arduino.h>3 ^# [8 H3 R$ G! O+ b' x
- ESP8266WiFiMulti WiFiMulti;8 G0 w, e8 f# a7 A, e1 C. n, K
- ESP8266WebServer server(80);
" b! A* o* s' Z, H - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 M$ f: c1 C/ U2 o; V2 F
- ADC_MODE(ADC_VCC); T! u$ {6 V% Q, Q$ \. x" Y7 A
- void setup() {
+ \" v! U& f7 u - Serial.begin(115200);- d4 Y6 v; ~( e4 E, j! e4 V7 s
- Serial.print("\r\n\n");' y( W+ `/ j# t) W
- pinMode(2,OUTPUT);
: x1 n/ O" b9 E2 O! _ - // WIFI. x* v8 w7 c& n
- WiFi.mode(WIFI_STA);
# w+ L7 r& L- ]' ` - WiFi.hostname("Sparkle");
/ Z/ G( Y& b% a+ _; p - WiFiMulti.addAP("wifi ssid", "wifi password"); B$ G' f1 k4 i# P& w8 z8 Y* ^/ `5 N* A
- int tryNum = 15;: _1 Q W. j9 A+ H! l3 n
- Serial.print("Connect WiFi");0 R* P' W+ e5 K4 d
- while (WiFiMulti.run() != WL_CONNECTED) {
$ J9 X/ d& M9 J& F" J) ] - digitalWrite(2,0);6 s- L3 H/ G6 P+ T: P. c
- delay(200);0 y8 u* r X- {# l
- digitalWrite(2,1);
4 k# U. K& a7 r - delay(300);
/ `+ }& l6 T, T9 d7 J - Serial.print(".");
+ I2 v7 ^% S9 J H$ Y; b# S; h2 {) X - tryNum--;
' P: P6 e( ?8 C2 t - if (tryNum == 0) {9 X. F' {" y# C0 ^
- // 1min
% d) E2 }' q9 c* w - // ESP.deepSleep(60e6);+ ^& ?- {1 ^- Q: y
- ESP.deepSleep(0);/ F7 _; B) O) c& W& [
- }/ g% Z: m4 J: D3 W7 f8 U" E# L
- }
- S% Q$ V; l; p1 F - Serial.print("\r\n");* N9 @# N7 D# r' I; K {# L
- digitalWrite(2,1); w3 F2 r. V# _& Z
- Serial.print("IP address : ");
' i9 t C% |5 m" H, x" Y - Serial.println(WiFi.localIP());- {6 J! Y! D) {+ Y5 C3 |. E
- server.on("/", HTTP_GET, [](){
& m2 {9 Q% {1 ^: r - server.sendHeader("Connection", "close");
8 e4 y/ s! N1 z1 _ - server.send(200, "text/html", serverIndex);
; w( u ?2 s( }1 n - });
5 ?3 I; @; f' d - server.on("/update", HTTP_POST, [](){
8 c! H) ?; U! ~% f - server.sendHeader("Connection", "close");0 r X8 A, Y$ J, t/ i+ G, c) ?/ t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, r, T; A5 v; A1 B8 b* p
- ESP.restart(); j4 m# _& a4 q* E7 k% H4 Y
- },[](){
: E# r4 o: X- w7 y) m" `7 R - HTTPUpload& upload = server.upload();
8 J! H- b0 I7 c0 P* u7 K8 f3 ~) V% Z - if(upload.status == UPLOAD_FILE_START){, @/ z# h; M3 a; r( z4 X4 l0 |* J- B
- Serial.setDebugOutput(true);- O0 H V" h$ o% v3 B' Y1 V2 ^
- Serial.printf("Update: %s\n", upload.filename.c_str());1 }# U: N- {% w X/ i- R+ V
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ p* M: ^ f' J# B: e
- if(!Update.begin(maxSketchSpace)){* P) m% x) T( V$ W/ v+ ~) @" o: k
- Update.printError(Serial);; L9 R; z4 A- n' ~
- }. C5 ~3 G, `4 {
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ |5 u, z! O0 q$ h1 P, z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! d) V9 j, {3 f
- Update.printError(Serial);" {' \$ F: Y- F, a& k& x6 e: ^7 _* B
- }
* s( ~' [& Q; i3 M, f1 f6 J - } else if(upload.status == UPLOAD_FILE_END){
. G( S; U7 J! N2 _# ^& w - if(Update.end(true)){. H% K# Z1 D+ d m7 u1 |1 p, }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- G# x( ?4 G& E C( D0 a' y
- } else {$ R1 ^- W/ q! T
- Update.printError(Serial);' i3 F$ ~- U i: d
- }: H- u6 i% F% M7 I5 h
- Serial.setDebugOutput(false);9 T+ r2 G6 t: W f$ f
- }' e6 p4 b+ l) ]2 i3 U
- yield();
7 k0 E ^" x. h |; L j7 e% C, h - });
7 r+ }- N2 s5 o/ c( Z - ; _+ |5 H0 W" W5 g; ~
- digitalWrite(2,0);( f) o5 S5 d& b; C& A
- mainAction();
% ^! ]- u* W" u' D8 N' q - if (digitalRead(0)){4 m" U# N2 d+ G M# e7 M ] @
- ESP.deepSleep(0);7 x8 c8 c& X& R$ h" \) I) A$ b
- } else {- n: i4 t# U; E# S$ {1 O2 G- F
- server.begin();
& q$ {3 ^+ p4 _! K5 h/ p - }
4 u9 e$ O0 h: a$ W+ B4 ?( m - }# U% K* D- u) t' C! W# \
- void loop() {3 Q1 m, d8 s& \6 v9 c+ e+ p7 O* q8 i
- server.handleClient();
; P2 B* h5 E( P0 f - delay(1);
; x- _; z; ~: G1 y/ ?; v v - }+ R# i2 o9 T6 R7 P
- String doGet(String url){; X0 g8 \8 L8 l) q: C( R8 b# J
- if ((WiFiMulti.run() == WL_CONNECTED)) {
# ?6 T' f5 V& | - HTTPClient http;
2 b8 \0 u: f0 R) S: R: o - Serial.println("[HTTP] begin...");. K/ o" @) J! N6 P# k' M
- if (url.startsWith("https")) {
3 y, H: _4 X8 R; @ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- Q5 l K0 F6 E; Q4 I0 u/ T( X - } else {
0 @4 i; Z8 p C5 C0 }4 p7 L - http.begin(url);. ]7 S9 w- i* K8 i J7 O
- }
! M8 ]% n+ H/ |7 N5 h - Serial.println("[HTTP] GET...");
8 I1 \6 x4 ?! G: } y3 X - int httpCode = http.GET();
0 v+ P% T7 G5 Z+ j$ L2 y8 B7 ^ - if (httpCode > 0) {+ |' G1 y# [, z/ i3 [# a
- Serial.printf("[HTTP] code: %d\n", httpCode);6 u H; p/ [ z+ g- {( z
- if (httpCode == HTTP_CODE_OK) {, y: W8 ^- g0 S& @) o% ~
- String payload = http.getString();( A# g5 s2 U( e! l5 g
- Serial.println(payload);! y' F# `, f3 l/ x, ^7 N# Y
- Serial.print("\r\n");
5 l7 O3 [5 F5 ^1 X5 B% r9 Z - return payload;% X4 \! N; N* g% p
- }
2 a. `( n& z' l) H# m& T* o" E - } else {
7 [" \. X& @" e+ d; ~4 ?( N; B$ ~- B6 P: U - Serial.printf("[HTTP] GET... failed, error: %s\n",# }( a1 T3 D" d
- http.errorToString(httpCode).c_str());% u2 f) D0 e% V1 |2 {; `- x" Y; j
- }
* \5 o1 ^7 @% o7 L - http.end();
+ ~" C g. u8 J( s. c( m1 m( } - return "";9 U( A& f( Y! h
- }7 [; u. l( q) @
- }
, z0 M j6 ?/ \- Q8 [+ s5 X - void mainAction() {
4 e. {, D9 b% m5 F1 z - // 发送请求8 p$ c- X" M3 q' D+ ]
- doGet("http://google.cn");
7 Z8 ?2 E& R9 I: Z - }
) M1 D. c$ `9 ]! K) y0 B ?
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