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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)
5 E- R2 I* S$ ]6 P0 }4 y- #include <ESP8266HTTPClient.h>
4 z" g% H0 W; v- [3 | - #include <ESP8266WiFi.h>$ }. r0 ^ }4 b* l2 D' J
- #include <ESP8266WiFiMulti.h>% u; ^( I& Q1 s; f, v5 `
- #include <ESP8266WebServer.h>
7 N+ k a! f* s9 |8 F; F - #include <arduino.h>
* ~% o& S3 N" K, p. B - ESP8266WiFiMulti WiFiMulti;" K% E5 ]# P& n* ^# r, Q
- ESP8266WebServer server(80);5 d7 k! I2 G$ u7 x) X' l- b+ I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 W0 O& c- i0 U' |' I - ADC_MODE(ADC_VCC);4 m2 e# A6 k/ f4 Y. i
- void setup() {
( N, ~: W$ \( }3 o5 u4 }- d ~ - Serial.begin(115200);
: @5 `1 K# d5 z+ N! ?2 r/ }0 t - Serial.print("\r\n\n");% G$ o4 \, V* w: f
- pinMode(2,OUTPUT);
6 y0 B" |3 H: Y - // WIFI
5 M) u* Q8 D9 s5 L1 B0 {6 O - WiFi.mode(WIFI_STA);
# H7 i h. l; ~) U5 ] - WiFi.hostname("Sparkle");
) J0 _% S7 o0 l r1 {0 ^ - WiFiMulti.addAP("wifi ssid", "wifi password");
7 V* B4 R/ [3 i" k: s9 I - int tryNum = 15;
1 O$ _' h3 E' h }/ L - Serial.print("Connect WiFi");8 w; b" U: q/ L% k$ L; t3 E
- while (WiFiMulti.run() != WL_CONNECTED) {
( B& Z. \, a" f* T! ?/ Z* a - digitalWrite(2,0);
/ j) G" ^, G+ B: R, p - delay(200);- Z3 `- f+ B! y
- digitalWrite(2,1);1 Z1 c2 ?. Z1 K }% r
- delay(300);" | t+ g6 K2 l$ E6 b! {
- Serial.print(".");- ?3 u* Q7 {/ ^5 A5 O( ]$ P0 A
- tryNum--;
) b9 f6 N- h6 C$ S7 r - if (tryNum == 0) {
8 J: C! X: ?* ]% R' U: m - // 1min9 I$ j8 D }: o
- // ESP.deepSleep(60e6);4 T" l7 P+ }! l- Z7 ^. v
- ESP.deepSleep(0);6 d: K P8 g4 q; e
- }- U8 e" o" @2 @1 {8 j! X% \! i. ]
- }
' X0 Z @3 N- q* m1 E) L# F& p* } - Serial.print("\r\n");$ Z% d; ]# _1 w9 m) S1 w
- digitalWrite(2,1);9 Z4 G) W, D% e
- Serial.print("IP address : ");
. F2 f( @8 C5 k2 [ - Serial.println(WiFi.localIP());
* }2 q ~& h3 I4 K3 z1 i. b0 n - server.on("/", HTTP_GET, [](){3 w7 [& ^4 O8 g8 C. F* n
- server.sendHeader("Connection", "close");
( |2 D3 \/ r4 A f, r2 Z - server.send(200, "text/html", serverIndex);% P1 ?8 b8 ?, v
- });
! _ v0 q9 Z9 x+ _ - server.on("/update", HTTP_POST, [](){
3 z. K1 M# [' I# \0 o& E - server.sendHeader("Connection", "close");
9 S, \9 f0 Y. o$ T - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 u7 h# h% s! t9 w( e - ESP.restart();
5 `6 h+ u% H$ v6 f% T - },[](){9 ], P6 ?6 r' m0 \: v/ f! W
- HTTPUpload& upload = server.upload();+ t6 G9 Y0 q- _" j+ ]) t) F
- if(upload.status == UPLOAD_FILE_START){
& T8 F6 x+ s% g! c! b6 {; N/ J0 t - Serial.setDebugOutput(true);3 Y9 n. ?4 g8 o% }' f2 A
- Serial.printf("Update: %s\n", upload.filename.c_str());
# y5 J6 B6 l% i& M! G2 d' B( s7 K - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 B3 P$ X4 y, ~' I7 n( }
- if(!Update.begin(maxSketchSpace)){1 q7 W+ I2 i1 p% j! r' G, F
- Update.printError(Serial);
" {+ V+ u; ?* r - }- X* W, n( O/ {# ?7 ? ~7 V( a
- } else if(upload.status == UPLOAD_FILE_WRITE){# B! s* \% t! ]' [4 y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) u% C6 [9 a7 J9 M3 ~7 p& d# t9 ^ - Update.printError(Serial);( c- R& H0 T V0 Y4 {/ Y' G3 T
- }
9 x2 V1 ^! ]. f3 h# K - } else if(upload.status == UPLOAD_FILE_END){0 O9 g; o& q& p/ `& Z6 K
- if(Update.end(true)){6 y5 ]( f. p- f
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* v. t; g/ \8 K- v2 g
- } else {
' E) F w: [9 J& z1 m - Update.printError(Serial);
; w6 G, G/ A9 A. _0 j! R) H - }
! b5 n' K# [5 k - Serial.setDebugOutput(false);" }5 q2 U F- Z, p6 L u* V$ F+ Q
- }5 K: j5 d5 N3 R( M6 j9 B+ T0 b
- yield();: {5 H r5 p* w* @ Y. \2 W
- });8 z3 [/ I" X2 ]6 Z" g
- 4 M* H' F4 ?# s, Q
- digitalWrite(2,0);
2 @% B' ~# r% C: B- D$ c: ~+ p - mainAction();: `. I7 |/ N, Z d4 E
- if (digitalRead(0)){$ L0 N7 s. D. v
- ESP.deepSleep(0);2 @ P7 U+ u5 h' g7 I% B8 j8 c" _
- } else {/ H! v; D0 B8 U, B
- server.begin();
4 ^, E6 V/ H! G9 `0 f - }* y( p2 j* v) H" S7 N8 B( [
- }
8 W& E* i9 X6 w% Q$ B; l- f - void loop() {
. m" _2 k0 O# Z1 f# T! \- m - server.handleClient();) F2 z5 p) @! k3 r" a; n
- delay(1);
$ Q" \2 ~; B; w2 t - }
, q+ w: K" o' F9 K! P - String doGet(String url){* B3 d' Z5 G1 J4 d1 ?" M+ f, C5 ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 o1 S7 j, c) y$ B3 J2 e/ t - HTTPClient http;
( ]8 q5 o8 w2 A1 _6 [ K% L5 K - Serial.println("[HTTP] begin...");/ c! U' Z( _6 T
- if (url.startsWith("https")) {" b/ y% F4 a5 r5 M! X' e3 o
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 T7 T$ g( {* \ - } else {
% y( y4 E# c) ]+ n - http.begin(url);
: Y2 Z& N; ~; ]& |' _& J! n# v - }; ~ ^ S! Q( u% {1 D+ v) @
- Serial.println("[HTTP] GET...");1 Q7 L# F, H' L! s, a3 ^1 `9 Q5 g
- int httpCode = http.GET();
, Y. S! ^; l+ d1 l) N% N6 }% |" B - if (httpCode > 0) {
7 [7 b* ]8 _! ^ E# O( L" A - Serial.printf("[HTTP] code: %d\n", httpCode);
5 S$ ?$ }. o) C- ?9 C- M - if (httpCode == HTTP_CODE_OK) {
! m; {: R; a& f* A J* O& Z - String payload = http.getString();
: c b& q. r+ i" f8 W% M& _ - Serial.println(payload);
/ D3 _# V7 L5 b - Serial.print("\r\n");
) Z$ i- \1 q- K: h {2 s& G - return payload;
/ J: V3 C" Q7 y3 e) I9 b% i% r - }
+ b) l: }, Z; X$ i3 k8 U - } else {
% E8 H4 P8 Q$ y- |* r8 s, o, E - Serial.printf("[HTTP] GET... failed, error: %s\n",
) t/ N5 B$ M9 }2 ^% t - http.errorToString(httpCode).c_str());* g" s) K* P }5 V
- }
" o9 r+ T. o6 T8 T5 r& ?" ?. A7 m - http.end();
' A+ e' E4 Z; b7 v& g - return "";4 b( ?, A7 G& |/ Y- @
- }) W: Q$ J4 V; j" w
- }
% S# m% S4 R6 A - void mainAction() {
% T3 {* x9 q7 \2 n, b& S - // 发送请求
z& j. G+ r/ ~ - doGet("http://google.cn");" {' c4 J2 K/ |1 r+ ?2 q5 j
- }& {6 ^2 R0 H* K$ P3 S& u2 h; l
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