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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)
$ ~0 [7 q O* Y% k$ P4 Y1 G- #include <ESP8266HTTPClient.h>2 C2 D' [4 y/ C9 d. ?9 X
- #include <ESP8266WiFi.h>
* [ x; h8 W, z' w* ^/ O - #include <ESP8266WiFiMulti.h>+ k4 w" M) S* @1 Z& D
- #include <ESP8266WebServer.h>7 @' Y' q) Y$ G* g. i$ V! H M
- #include <arduino.h>
( B, G+ }# C, t' @' _: ` - ESP8266WiFiMulti WiFiMulti;$ ^2 \) C: p) i
- ESP8266WebServer server(80);
3 M8 E3 i. X! e$ u& g3 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; j% V2 B* V" w: k0 B' m- }7 U
- ADC_MODE(ADC_VCC);8 y. S7 r( l1 h7 l6 N( y
- void setup() {. k8 B, w/ G6 b( Z+ H
- Serial.begin(115200);7 [2 A! W* Z5 l3 R, n
- Serial.print("\r\n\n");
" ?2 o4 o5 V9 {; Y. C# A - pinMode(2,OUTPUT);
1 h8 n& V, m/ y. R. s - // WIFI- d, x& T X) j6 J
- WiFi.mode(WIFI_STA);) `) P' o9 n" W' J$ k
- WiFi.hostname("Sparkle");
@$ z# n; @5 P9 S. G; h. x - WiFiMulti.addAP("wifi ssid", "wifi password");
& V# b! j/ c# v7 F$ s - int tryNum = 15;3 }, s* _5 z$ f9 j. P3 C
- Serial.print("Connect WiFi");
# {+ g" M! X- o3 g4 {0 u2 P* \+ ? - while (WiFiMulti.run() != WL_CONNECTED) {
) ~" E( p6 t' b8 O4 h# i: Z$ L - digitalWrite(2,0);4 d7 @1 g) Y6 y2 ]. m( ]% r- I
- delay(200);
; Z3 D' i7 z6 q7 f, m - digitalWrite(2,1);
! s' J# S3 k. m. _" @2 C - delay(300);% K2 R0 B8 d& W, h
- Serial.print(".");: p" U* j1 y6 X) \* V
- tryNum--;- ^6 F4 {* [' G6 ?" V6 Z$ t! P' g! q) z
- if (tryNum == 0) {
( M- |# c: t) j7 M - // 1min2 x4 e/ D2 H# w1 M* H/ X
- // ESP.deepSleep(60e6);
1 h9 D- j, @, l z T* w - ESP.deepSleep(0);& X9 G. {! \8 M/ ~8 u- ]4 K% I C
- }+ T; a9 G) W/ Y1 q) w# g. b
- }
0 l) l4 _1 ~ [' z0 f: m/ H - Serial.print("\r\n");
$ d8 F' D3 x* L+ B6 y6 L, q - digitalWrite(2,1);
8 _# d6 X% Q9 D5 E# O6 y - Serial.print("IP address : ");: W7 }: A' J9 G* k
- Serial.println(WiFi.localIP());
* F7 }6 Z& P( ]9 B$ S& f6 \ - server.on("/", HTTP_GET, [](){
) a, ? Q& t$ m* E7 ^ - server.sendHeader("Connection", "close");
7 I) G- ]9 q; l2 u% T - server.send(200, "text/html", serverIndex); T& J! g% w/ S" t9 b1 l
- }); e4 [- ?3 o! I6 y, u- C
- server.on("/update", HTTP_POST, [](){
+ A5 d o8 l/ Z! X% J+ o - server.sendHeader("Connection", "close");! l. o& c; q, p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
W; I+ ~7 {$ C \5 X - ESP.restart();
* M' T8 y: F/ E* z - },[](){, B l8 @8 p8 K. K) w
- HTTPUpload& upload = server.upload();, O, B- G1 C- A; z
- if(upload.status == UPLOAD_FILE_START){
f$ w8 @2 g" _3 J* V - Serial.setDebugOutput(true);
3 c. r$ n3 W, J. J; c2 K - Serial.printf("Update: %s\n", upload.filename.c_str());" R* t% J5 c' @; P) ^0 u0 Z, A# e
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# J4 r; i( c# Z0 J; H - if(!Update.begin(maxSketchSpace)){
4 Y" G5 t7 R' I- ]# S2 `; } - Update.printError(Serial);9 p: E6 B. I2 R/ v
- }9 L, R( X l N. N" k* w
- } else if(upload.status == UPLOAD_FILE_WRITE){. F; {9 G5 e8 V. i" K/ M- x
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ ]; a$ _) m" |" ?. i4 O
- Update.printError(Serial);" E+ i/ w+ n% R+ A9 [6 k! x- ^
- }- o" ~7 T; u! _5 r
- } else if(upload.status == UPLOAD_FILE_END){1 u# S% e- g5 ~; {
- if(Update.end(true)){7 q" y' }2 o7 B& f2 m" @2 M; d
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 L( L: J: S' g
- } else {! v' E& t( ]& d% }7 X' a+ T3 I
- Update.printError(Serial);
/ }1 f) `% m7 h$ j, P - }
* \+ O7 M4 M) m) q8 A: v& C% b - Serial.setDebugOutput(false);
\. j2 C! i, t' A/ l* X4 k - }+ b0 S7 }. z) j8 d/ g* \6 ^8 x
- yield(); h8 U5 X% @% d7 }" t8 c( n
- });4 v3 U8 ^& w, G! z2 {2 ~
-
( N0 s2 t! O1 `- u& { - digitalWrite(2,0);7 g2 @5 H/ \% |
- mainAction();! I& W+ Z2 `- E
- if (digitalRead(0)){
9 C1 q) x8 ]; S" i1 _/ ` - ESP.deepSleep(0);
+ F* z$ P+ k% x9 y- T/ Q6 g+ e - } else {5 W/ @: H, v* X7 p% o6 S
- server.begin(); J; \; W+ h( M- \7 y* v6 M
- }( f0 |, @- u4 O0 x; @1 i; `( L: P
- }, Z7 e+ `( G4 T7 j! o+ N
- void loop() {
z' A2 q' w4 J4 F" R - server.handleClient();
! }( a& v! h/ S. v* K( P8 [ ]3 ` - delay(1);
! q) W/ L! D. A0 R( S - }: X( E8 a" J1 h! {& S$ {: d& }
- String doGet(String url){) h( ?* M9 y/ K( \2 h, s
- if ((WiFiMulti.run() == WL_CONNECTED)) {! S& B/ T M2 I( z: \
- HTTPClient http;+ r6 |# M; k% P6 v* l+ \# ~
- Serial.println("[HTTP] begin...");/ [) Z; L6 X4 I d
- if (url.startsWith("https")) {
8 s$ ?( l8 F! J1 g$ I: G3 @2 i - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 ]$ l3 d, P; |: B& t - } else {# e. O8 n( r4 E7 [
- http.begin(url);. o: T9 E2 D7 O5 T% u6 k
- }/ V% W3 O; M, S; q2 v S( t
- Serial.println("[HTTP] GET...");
4 @2 h1 U0 l( `# u _ - int httpCode = http.GET();6 v4 E: I9 j. A" j' Q) Z
- if (httpCode > 0) {
* _. w Y* _6 M, [/ C& g. U - Serial.printf("[HTTP] code: %d\n", httpCode);- H+ _3 ~0 k7 }! Q5 M0 z
- if (httpCode == HTTP_CODE_OK) {. K* Q: J; }3 d! T
- String payload = http.getString();7 T- ^- J3 t' f* h3 r" u& f
- Serial.println(payload);
, t; L J5 N. [ - Serial.print("\r\n");9 M" t n* p2 B0 d; a
- return payload;
5 y( c7 p: n2 i8 y9 m; I - }
) r1 T+ P2 K7 D/ A - } else {
5 L$ u. A: a- F+ C% G+ l - Serial.printf("[HTTP] GET... failed, error: %s\n",3 u/ h- @2 B- |: ~) x/ e% h
- http.errorToString(httpCode).c_str());
! s6 ?" [- k$ Q+ [0 b - }! u D' ^( ^( ]% \7 p" Q
- http.end();, r7 v- [0 X; t" \1 [! X' m
- return "";; z+ c4 v( R( J7 A0 n3 X
- }
. Y1 f- U* ^% ?4 v! H& e7 @8 B - }
' \9 M* l" \ P) k4 S) j7 Y - void mainAction() {
0 y& C7 u& H, O; [0 ^# ` @/ B - // 发送请求4 ? k7 s) ~' T" Q
- doGet("http://google.cn");7 i$ `, K* C8 D& K7 w
- }9 r) O7 q: `( Z* @1 a# j7 T' I+ {7 ^
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