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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)
$ W F% g" b) W7 S! c( N- #include <ESP8266HTTPClient.h>
. r0 y7 h. L" O m N8 m - #include <ESP8266WiFi.h>$ M/ L( I- F2 l' \, b- R0 y8 _" _
- #include <ESP8266WiFiMulti.h>4 w: t! G8 ]& ~$ q* r( J9 X8 Q* ?
- #include <ESP8266WebServer.h>, v( e( L% \# n( H$ i
- #include <arduino.h>0 C; c% [! s6 O' U& V4 _
- ESP8266WiFiMulti WiFiMulti;2 u; ? q/ G( Z( R% c' _5 Z4 u
- ESP8266WebServer server(80);
0 T1 o: k/ k0 h2 L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) B, W+ Z! [* x! d1 B3 e9 l
- ADC_MODE(ADC_VCC);* }* B8 U" B0 R
- void setup() {4 {/ W; y1 f1 F3 K7 q9 t
- Serial.begin(115200);
* J* `# c$ K7 ]( n4 b - Serial.print("\r\n\n");' c, I: o! f" s' b/ B) Z
- pinMode(2,OUTPUT);& F& M! v+ |( q9 h% U
- // WIFI
4 X. V5 _) a( t0 ^ - WiFi.mode(WIFI_STA);
K1 D9 d3 G2 k3 X, S - WiFi.hostname("Sparkle");7 N3 t1 H: y! _9 ~4 w/ D# ]7 y' g
- WiFiMulti.addAP("wifi ssid", "wifi password");. t, M9 M- f6 y8 K! O' y" W- p
- int tryNum = 15;
( f Q& u) x2 M - Serial.print("Connect WiFi");' I/ W/ ]5 J' R/ i4 d
- while (WiFiMulti.run() != WL_CONNECTED) {
* s$ g* ~% H3 }5 }* j6 [$ W - digitalWrite(2,0);
$ S( d0 T g _0 h( G& g# ` J - delay(200);
" A+ x" R7 x6 y( D" ^ - digitalWrite(2,1);) t4 k$ @' H6 i- j3 h
- delay(300);# w5 @% s" l5 x& ]/ Q+ ?9 R
- Serial.print(".");9 m+ I* B1 K, y
- tryNum--;
$ }+ t: O, x. x" @7 T( m: D+ l - if (tryNum == 0) {
: m9 H; s" O7 X0 j# t) Z - // 1min
1 E3 r3 S* `0 B! `8 a - // ESP.deepSleep(60e6);# Q$ A5 J1 h, c) X
- ESP.deepSleep(0);+ o/ l2 h5 V% r6 D: I- E ^2 s
- }" T, d$ o8 X% Q2 `
- }
, l) V+ W: z4 n& Z% \) z - Serial.print("\r\n");
" m: Z% m& p/ X9 o* v/ ?+ P - digitalWrite(2,1);' Q% }( z) q) T* V( Z: ], V
- Serial.print("IP address : ");
; H1 R& n) m3 I& a! A+ a - Serial.println(WiFi.localIP());
v" r8 y& S# v! S6 |9 U! n6 ]0 [+ z8 j - server.on("/", HTTP_GET, [](){. k9 @0 A/ R1 E d7 F* C
- server.sendHeader("Connection", "close");
: ?6 G7 Q! p! G2 V5 y - server.send(200, "text/html", serverIndex);& {( |6 f% J/ B2 o1 Y
- });" B9 b5 B" ]/ P; O4 C3 j
- server.on("/update", HTTP_POST, [](){
`# O4 z; H9 R" h' S, b - server.sendHeader("Connection", "close");% L O* c* m" V; x0 X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' M( k2 T$ }3 ]+ W - ESP.restart();
8 F d4 ?/ S! @; j1 D - },[](){
0 X+ i" l4 i( ]6 m, Y- S4 Q - HTTPUpload& upload = server.upload();
: C& L! W+ \- e& p2 k9 a - if(upload.status == UPLOAD_FILE_START){" ~3 g7 f" w$ c
- Serial.setDebugOutput(true);
1 W1 t1 y6 v, m/ n - Serial.printf("Update: %s\n", upload.filename.c_str());
4 g" M O9 R+ d! W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, J# m# c* g) Q+ s) V8 X
- if(!Update.begin(maxSketchSpace)){
4 }) G; L2 H" b. G - Update.printError(Serial);6 n4 U* C8 Y* l" a) s
- }
# J6 |3 p( w3 c9 i+ H' a. u$ Y - } else if(upload.status == UPLOAD_FILE_WRITE){ c/ M* \: ?. I/ ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ k6 O. \2 Z* q9 E - Update.printError(Serial);' q8 k, e5 T2 y c, { v' d
- }
" f, w' _1 f4 ^1 J - } else if(upload.status == UPLOAD_FILE_END){3 v9 X2 U* y6 x$ S8 z# w
- if(Update.end(true)){9 b4 v6 m) p( @, g5 l$ e, e! b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; C# Y3 g# S2 C - } else {
) E# o& h+ r3 U" I; ]0 y' Z - Update.printError(Serial);
- T+ \5 l6 z3 r {: Q( O$ o - }
; H2 S; @9 P6 ?- W+ q6 I - Serial.setDebugOutput(false);
8 B! v0 e; \- x - }
8 {' W* y' L7 v7 W4 j2 ~ - yield();
! L( {- ]( g& x% x# u - });
: ?( m b1 O2 _0 A# A$ U - 8 N" ~: }) Z9 \
- digitalWrite(2,0);
3 K3 e! F& W9 ?, P3 i$ q( X - mainAction();1 `& o% e6 L& A" r- K0 P; r2 k6 K
- if (digitalRead(0)){
4 e" j: o. }) i3 f- H. E - ESP.deepSleep(0);
. Q. H Y1 ]" p, b7 U6 d5 H - } else {. ~" s! Z) B. o) A) c. {
- server.begin();
/ y/ i/ s4 R1 k5 N8 V- i - }
6 G- @( { W- ?5 _6 ^ - }
2 x; i5 l; a' ^2 p - void loop() {
8 t, m5 d' h4 Y - server.handleClient();8 {2 C; n- j6 f1 R' k
- delay(1);9 R( n$ F( g1 {" A8 [1 \ r
- }
% M6 @4 u/ P, N9 g - String doGet(String url){1 C9 p; u' e4 b. S# K' m7 A9 j
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" L+ {- ~2 U+ Y) T - HTTPClient http;
7 H1 G) o6 P& H0 }9 Z+ m: F B% P - Serial.println("[HTTP] begin...");
, p$ [- p! L; j: V6 K2 L - if (url.startsWith("https")) {7 [( ]. p+ H3 P& Z8 F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
0 w: G! v5 Z8 l9 L1 I# m - } else {
7 O5 w. F# P$ ] - http.begin(url);6 Q/ l( L% \( t1 z6 e( }' ]* E6 i ]
- }
/ q( G" v5 r6 ?, G* z - Serial.println("[HTTP] GET...");- A0 W5 Y1 ]* H$ `% q* @2 x9 h
- int httpCode = http.GET();
# g2 B3 J, u9 w, F - if (httpCode > 0) {8 e: k* \% o6 g, a, k; U! q- h
- Serial.printf("[HTTP] code: %d\n", httpCode);1 ~8 t1 B& _& j4 P3 H8 S' Y
- if (httpCode == HTTP_CODE_OK) {- B% H' o+ i' N2 j1 @4 P* c
- String payload = http.getString();
1 W& O8 u1 w" G, R) q, Q - Serial.println(payload);$ ^9 x. ^& d& Z9 r0 V3 G
- Serial.print("\r\n");
' P' S# S- l9 o4 Y - return payload;
! N. C0 {& x- l) A4 f - }, {7 s, L/ P7 _) E1 x
- } else {0 c3 l2 E& y. e
- Serial.printf("[HTTP] GET... failed, error: %s\n",
3 ~& {4 u( [ M+ M8 n - http.errorToString(httpCode).c_str());' t% [; ?1 e i$ T
- }
# j; j$ u; ] p1 l" b - http.end();4 s( _2 O1 I0 a2 ]' I& U
- return "";, p N" | Z9 x1 }% A
- }9 X3 X0 K6 p" E; M/ B- m! l
- }
! d& E3 h8 x( R$ M$ K7 }& } - void mainAction() {
( w) i# m2 T- o8 ^: d/ U0 z - // 发送请求7 i, i' Q( D. f) R( ~9 M! m( ~
- doGet("http://google.cn");
% c; c0 V+ h# `% O. ? - }
, R9 c/ @+ ]' n
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